• http://repositori.usu.ac.id/handle/123456789/4777
• http://repositori.usu.ac.id/handle/123456789/4776
• http://repositori.usu.ac.id/handle/123456789/4794
• http://repositori.usu.ac.id/handle/123456789/4796
• http://repositori.usu.ac.id/handle/123456789/4803
• http://repositori.usu.ac.id/handle/123456789/4804
• http://repositori.usu.ac.id/handle/123456789/4805
• http://repositori.usu.ac.id/handle/123456789/4806
• http://repositori.usu.ac.id/handle/123456789/4809
• http://repositori.usu.ac.id/handle/123456789/4811
• http://repositori.usu.ac.id/handle/123456789/4818
• http://repositori.usu.ac.id/handle/123456789/4822
• http://repositori.usu.ac.id/handle/123456789/4824
• http://repositori.usu.ac.id/handle/123456789/4825
• http://repositori.usu.ac.id/handle/123456789/4826
• http://repositori.usu.ac.id/handle/123456789/4842
• http://repositori.usu.ac.id/handle/123456789/4844
• http://repositori.usu.ac.id/handle/123456789/4846
• http://repositori.usu.ac.id/handle/123456789/4848
• http://repositori.usu.ac.id/handle/123456789/4852
• http://repositori.usu.ac.id/handle/123456789/4716
• http://repositori.usu.ac.id/handle/123456789/4717
• http://repositori.usu.ac.id/handle/123456789/4718
• http://repositori.usu.ac.id/handle/123456789/4722
• http://repositori.usu.ac.id/handle/123456789/4727
• http://repositori.usu.ac.id/handle/123456789/4726
• http://repositori.usu.ac.id/handle/123456789/4816
• http://repositori.usu.ac.id/handle/123456789/4820
• http://repositori.usu.ac.id/handle/123456789/4821
• http://repositori.usu.ac.id/handle/123456789/4853
• http://repositori.usu.ac.id/handle/123456789/4855
• http://repositori.usu.ac.id/handle/123456789/4859
• http://repositori.usu.ac.id/handle/123456789/4712
• http://repositori.usu.ac.id/handle/123456789/4713
• http://repositori.usu.ac.id/handle/123456789/4714
• http://repositori.usu.ac.id/handle/123456789/4715
• http://repositori.usu.ac.id/handle/123456789/4719
• http://repositori.usu.ac.id/handle/123456789/4720
• http://repositori.usu.ac.id/handle/123456789/4721
• http://repositori.usu.ac.id/handle/123456789/4723
• http://repositori.usu.ac.id/handle/123456789/4724
• http://repositori.usu.ac.id/handle/123456789/4725
• http://repositori.usu.ac.id/handle/123456789/4740
• http://repositori.usu.ac.id/handle/123456789/4742
• http://repositori.usu.ac.id/handle/123456789/4743
• http://repositori.usu.ac.id/handle/123456789/4744
• http://repositori.usu.ac.id/handle/123456789/4758
• http://repositori.usu.ac.id/handle/123456789/4760
• http://repositori.usu.ac.id/handle/123456789/4764
• http://repositori.usu.ac.id/handle/123456789/4766
• http://repositori.usu.ac.id/handle/123456789/4768
• http://repositori.usu.ac.id/handle/123456789/4769
• http://repositori.usu.ac.id/handle/123456789/4770
• http://repositori.usu.ac.id/handle/123456789/4786
• http://repositori.usu.ac.id/handle/123456789/4789
• http://repositori.usu.ac.id/handle/123456789/4813
• http://repositori.usu.ac.id/handle/123456789/4814
• http://repositori.usu.ac.id/handle/123456789/4815
• http://repositori.usu.ac.id/handle/123456789/4817
• http://repositori.usu.ac.id/handle/123456789/4819
• http://repositori.usu.ac.id/handle/123456789/4728
• http://repositori.usu.ac.id/handle/123456789/4729
• http://repositori.usu.ac.id/handle/123456789/4731
• http://repositori.usu.ac.id/handle/123456789/4733
• http://repositori.usu.ac.id/handle/123456789/4735
• http://repositori.usu.ac.id/handle/123456789/4736
• http://repositori.usu.ac.id/handle/123456789/4737
• http://repositori.usu.ac.id/handle/123456789/4739
• http://repositori.usu.ac.id/handle/123456789/4738
• http://repositori.usu.ac.id/handle/123456789/4751
• http://repositori.usu.ac.id/handle/123456789/4752
• http://repositori.usu.ac.id/handle/123456789/4755
• http://repositori.usu.ac.id/handle/123456789/4756
• http://repositori.usu.ac.id/handle/123456789/4763
• http://repositori.usu.ac.id/handle/123456789/4765
• http://repositori.usu.ac.id/handle/123456789/4767
• http://repositori.usu.ac.id/handle/123456789/4778
• http://repositori.usu.ac.id/handle/123456789/4782
• http://repositori.usu.ac.id/handle/123456789/4784
• http://repositori.usu.ac.id/handle/123456789/4785
• http://repositori.usu.ac.id/handle/123456789/4787
• http://repositori.usu.ac.id/handle/123456789/4788
• http://repositori.usu.ac.id/handle/123456789/4791
• http://repositori.usu.ac.id/handle/123456789/4792
• http://repositori.usu.ac.id/handle/123456789/4795
• http://repositori.usu.ac.id/handle/123456789/4812
• http://repositori.usu.ac.id/handle/123456789/4732
• http://repositori.usu.ac.id/handle/123456789/4734
• http://repositori.usu.ac.id/handle/123456789/4741
• http://repositori.usu.ac.id/handle/123456789/4747
• http://repositori.usu.ac.id/handle/123456789/4827
• http://repositori.usu.ac.id/handle/123456789/4830
• http://repositori.usu.ac.id/handle/123456789/4828
• http://repositori.usu.ac.id/handle/123456789/4829
• http://repositori.usu.ac.id/handle/123456789/4831
• http://repositori.usu.ac.id/handle/123456789/4835
• http://repositori.usu.ac.id/handle/123456789/4836
• http://repositori.usu.ac.id/handle/123456789/4843
• http://repositori.usu.ac.id/handle/123456789/4841
• http://repositori.usu.ac.id/handle/123456789/4850
• http://repositori.usu.ac.id/handle/123456789/4856
• http://repositori.usu.ac.id/handle/123456789/4857
• http://repositori.usu.ac.id/handle/123456789/4858
• http://repositori.usu.ac.id/handle/123456789/4860
• http://repositori.usu.ac.id/handle/123456789/4861
• http://repositori.usu.ac.id/handle/123456789/4862
• http://repositori.usu.ac.id/handle/123456789/4863
• http://repositori.usu.ac.id/handle/123456789/4864
• http://repositori.usu.ac.id/handle/123456789/4865
• http://repositori.usu.ac.id/handle/123456789/4866
• http://repositori.usu.ac.id/handle/123456789/4867
• http://repositori.usu.ac.id/handle/123456789/4868
• http://repositori.usu.ac.id/handle/123456789/4869
• http://repositori.usu.ac.id/handle/123456789/4870
• http://repositori.usu.ac.id/handle/123456789/4871
• http://repositori.usu.ac.id/handle/123456789/4872
• http://repositori.usu.ac.id/handle/123456789/4873
• http://repositori.usu.ac.id/handle/123456789/4874
• http://repositori.usu.ac.id/handle/123456789/4875
• http://repositori.usu.ac.id/handle/123456789/4876
• http://repositori.usu.ac.id/handle/123456789/4877
• http://repositori.usu.ac.id/handle/123456789/4878
• http://repositori.usu.ac.id/handle/123456789/4879
• http://repositori.usu.ac.id/handle/123456789/4880
• http://repositori.usu.ac.id/handle/123456789/4881
• http://repositori.usu.ac.id/handle/123456789/4882
• http://repositori.usu.ac.id/handle/123456789/4883
• http://repositori.usu.ac.id/handle/123456789/4922
• http://repositori.usu.ac.id/handle/123456789/4934
• http://repositori.usu.ac.id/handle/123456789/4938
• http://repositori.usu.ac.id/handle/123456789/4951
• http://repositori.usu.ac.id/handle/123456789/4953
• http://repositori.usu.ac.id/handle/123456789/4961
• http://repositori.usu.ac.id/handle/123456789/4969
• http://repositori.usu.ac.id/handle/123456789/4977
• http://repositori.usu.ac.id/handle/123456789/4984
• http://repositori.usu.ac.id/handle/123456789/4884
• http://repositori.usu.ac.id/handle/123456789/4911
• http://repositori.usu.ac.id/handle/123456789/4913
• http://repositori.usu.ac.id/handle/123456789/4929
• http://repositori.usu.ac.id/handle/123456789/4939
• http://repositori.usu.ac.id/handle/123456789/5010
• http://repositori.usu.ac.id/handle/123456789/5012
• http://repositori.usu.ac.id/handle/123456789/5021
• http://repositori.usu.ac.id/handle/123456789/4921
• http://repositori.usu.ac.id/handle/123456789/4925
• http://repositori.usu.ac.id/handle/123456789/4941
• http://repositori.usu.ac.id/handle/123456789/4948
• http://repositori.usu.ac.id/handle/123456789/4949
• http://repositori.usu.ac.id/handle/123456789/4955
• http://repositori.usu.ac.id/handle/123456789/4958
• http://repositori.usu.ac.id/handle/123456789/4956
• http://repositori.usu.ac.id/handle/123456789/4957
• http://repositori.usu.ac.id/handle/123456789/4965
• http://repositori.usu.ac.id/handle/123456789/4966
• http://repositori.usu.ac.id/handle/123456789/4982
• http://repositori.usu.ac.id/handle/123456789/4885
• http://repositori.usu.ac.id/handle/123456789/4895
• http://repositori.usu.ac.id/handle/123456789/4894
• http://repositori.usu.ac.id/handle/123456789/4902
• http://repositori.usu.ac.id/handle/123456789/4904
• http://repositori.usu.ac.id/handle/123456789/4905
• http://repositori.usu.ac.id/handle/123456789/4907
• http://repositori.usu.ac.id/handle/123456789/4906
• http://repositori.usu.ac.id/handle/123456789/4910
• http://repositori.usu.ac.id/handle/123456789/4909
• http://repositori.usu.ac.id/handle/123456789/4928
• http://repositori.usu.ac.id/handle/123456789/4940
• http://repositori.usu.ac.id/handle/123456789/4943
• http://repositori.usu.ac.id/handle/123456789/4944
• http://repositori.usu.ac.id/handle/123456789/4946
• http://repositori.usu.ac.id/handle/123456789/4945
• http://repositori.usu.ac.id/handle/123456789/4947
• http://repositori.usu.ac.id/handle/123456789/4964
• http://repositori.usu.ac.id/handle/123456789/4963
• http://repositori.usu.ac.id/handle/123456789/4972
• http://repositori.usu.ac.id/handle/123456789/4971
• http://repositori.usu.ac.id/handle/123456789/4973
• http://repositori.usu.ac.id/handle/123456789/4974
• http://repositori.usu.ac.id/handle/123456789/4975
• http://repositori.usu.ac.id/handle/123456789/4979
• http://repositori.usu.ac.id/handle/123456789/4981
• http://repositori.usu.ac.id/handle/123456789/4983
• http://repositori.usu.ac.id/handle/123456789/4998
• http://repositori.usu.ac.id/handle/123456789/5008
• http://repositori.usu.ac.id/handle/123456789/4886
• http://repositori.usu.ac.id/handle/123456789/4914
• http://repositori.usu.ac.id/handle/123456789/4915
• http://repositori.usu.ac.id/handle/123456789/4920
• http://repositori.usu.ac.id/handle/123456789/4926
• http://repositori.usu.ac.id/handle/123456789/4935
• http://repositori.usu.ac.id/handle/123456789/4962
• http://repositori.usu.ac.id/handle/123456789/4967
• http://repositori.usu.ac.id/handle/123456789/4991
• http://repositori.usu.ac.id/handle/123456789/4888
• http://repositori.usu.ac.id/handle/123456789/4890
• http://repositori.usu.ac.id/handle/123456789/4899
• http://repositori.usu.ac.id/handle/123456789/4898
• http://repositori.usu.ac.id/handle/123456789/4903
• http://repositori.usu.ac.id/handle/123456789/4933
• http://repositori.usu.ac.id/handle/123456789/4968
• http://repositori.usu.ac.id/handle/123456789/4970
• http://repositori.usu.ac.id/handle/123456789/4976
• http://repositori.usu.ac.id/handle/123456789/4978
• http://repositori.usu.ac.id/handle/123456789/4980
• http://repositori.usu.ac.id/handle/123456789/4887
• http://repositori.usu.ac.id/handle/123456789/4891
• http://repositori.usu.ac.id/handle/123456789/4892
• http://repositori.usu.ac.id/handle/123456789/4893
• http://repositori.usu.ac.id/handle/123456789/4897
• http://repositori.usu.ac.id/handle/123456789/4900
• http://repositori.usu.ac.id/handle/123456789/4901
• http://repositori.usu.ac.id/handle/123456789/4908
• http://repositori.usu.ac.id/handle/123456789/4930
• http://repositori.usu.ac.id/handle/123456789/4937
• http://repositori.usu.ac.id/handle/123456789/4936
• http://repositori.usu.ac.id/handle/123456789/4942
• http://repositori.usu.ac.id/handle/123456789/4950
• http://repositori.usu.ac.id/handle/123456789/4952
• http://repositori.usu.ac.id/handle/123456789/4954
• http://repositori.usu.ac.id/handle/123456789/4959
• http://repositori.usu.ac.id/handle/123456789/4960
• http://repositori.usu.ac.id/handle/123456789/4985
• http://repositori.usu.ac.id/handle/123456789/4986
• http://repositori.usu.ac.id/handle/123456789/4993
• http://repositori.usu.ac.id/handle/123456789/5001
• http://repositori.usu.ac.id/handle/123456789/5003
• http://repositori.usu.ac.id/handle/123456789/4889
• http://repositori.usu.ac.id/handle/123456789/4916
• http://repositori.usu.ac.id/handle/123456789/4917
• http://repositori.usu.ac.id/handle/123456789/4918
• http://repositori.usu.ac.id/handle/123456789/4927
• http://repositori.usu.ac.id/handle/123456789/4931
• http://repositori.usu.ac.id/handle/123456789/4932
• http://repositori.usu.ac.id/handle/123456789/4997
• http://repositori.usu.ac.id/handle/123456789/4896
• http://repositori.usu.ac.id/handle/123456789/4912
• http://repositori.usu.ac.id/handle/123456789/4919
• http://repositori.usu.ac.id/handle/123456789/4923
• http://repositori.usu.ac.id/handle/123456789/4924
• http://repositori.usu.ac.id/handle/123456789/4995
• http://repositori.usu.ac.id/handle/123456789/4987
• http://repositori.usu.ac.id/handle/123456789/4988
• http://repositori.usu.ac.id/handle/123456789/4989
• http://repositori.usu.ac.id/handle/123456789/4990
• http://repositori.usu.ac.id/handle/123456789/4992
• http://repositori.usu.ac.id/handle/123456789/4994
• http://repositori.usu.ac.id/handle/123456789/4996
• http://repositori.usu.ac.id/handle/123456789/4999
• http://repositori.usu.ac.id/handle/123456789/5000
• http://repositori.usu.ac.id/handle/123456789/5002
• http://repositori.usu.ac.id/handle/123456789/5004
• http://repositori.usu.ac.id/handle/123456789/5005
• http://repositori.usu.ac.id/handle/123456789/5007
• http://repositori.usu.ac.id/handle/123456789/5006
• http://repositori.usu.ac.id/handle/123456789/5009
• http://repositori.usu.ac.id/handle/123456789/5011
• http://repositori.usu.ac.id/handle/123456789/5013
• http://repositori.usu.ac.id/handle/123456789/5014
• http://repositori.usu.ac.id/handle/123456789/5015
• http://repositori.usu.ac.id/handle/123456789/5016
• http://repositori.usu.ac.id/handle/123456789/5017
• http://repositori.usu.ac.id/handle/123456789/5018
• http://repositori.usu.ac.id/handle/123456789/5019
• http://repositori.usu.ac.id/handle/123456789/5020
• http://repositori.usu.ac.id/handle/123456789/5022
• http://repositori.usu.ac.id/handle/123456789/5023
• http://repositori.usu.ac.id/handle/123456789/5024
• http://repositori.usu.ac.id/handle/123456789/5025
• http://repositori.usu.ac.id/handle/123456789/5027
• http://repositori.usu.ac.id/handle/123456789/5031
• http://repositori.usu.ac.id/handle/123456789/5033
• http://repositori.usu.ac.id/handle/123456789/5037
• http://repositori.usu.ac.id/handle/123456789/5040
• http://repositori.usu.ac.id/handle/123456789/5041
• http://repositori.usu.ac.id/handle/123456789/5042
• http://repositori.usu.ac.id/handle/123456789/5043
• http://repositori.usu.ac.id/handle/123456789/5044
• http://repositori.usu.ac.id/handle/123456789/5046
• http://repositori.usu.ac.id/handle/123456789/5048
• http://repositori.usu.ac.id/handle/123456789/5051
• http://repositori.usu.ac.id/handle/123456789/5054
• http://repositori.usu.ac.id/handle/123456789/5055
• http://repositori.usu.ac.id/handle/123456789/5056
• http://repositori.usu.ac.id/handle/123456789/5026
• http://repositori.usu.ac.id/handle/123456789/5029
• http://repositori.usu.ac.id/handle/123456789/5028
• http://repositori.usu.ac.id/handle/123456789/5030
• http://repositori.usu.ac.id/handle/123456789/5032
• http://repositori.usu.ac.id/handle/123456789/5034
• http://repositori.usu.ac.id/handle/123456789/5035
• http://repositori.usu.ac.id/handle/123456789/5036
• http://repositori.usu.ac.id/handle/123456789/5038
• http://repositori.usu.ac.id/handle/123456789/5039
• http://repositori.usu.ac.id/handle/123456789/5045
• http://repositori.usu.ac.id/handle/123456789/5047
• http://repositori.usu.ac.id/handle/123456789/5049
• http://repositori.usu.ac.id/handle/123456789/5050
• http://repositori.usu.ac.id/handle/123456789/5052
• http://repositori.usu.ac.id/handle/123456789/5053
• http://repositori.usu.ac.id/handle/123456789/5057
• http://repositori.usu.ac.id/handle/123456789/5058
• http://repositori.usu.ac.id/handle/123456789/5062
• http://repositori.usu.ac.id/handle/123456789/5067
• http://repositori.usu.ac.id/handle/123456789/5070
• http://repositori.usu.ac.id/handle/123456789/5072
• http://repositori.usu.ac.id/handle/123456789/5075
• http://repositori.usu.ac.id/handle/123456789/5076
• http://repositori.usu.ac.id/handle/123456789/5079
• http://repositori.usu.ac.id/handle/123456789/5080
• http://repositori.usu.ac.id/handle/123456789/5084
• http://repositori.usu.ac.id/handle/123456789/5085
• http://repositori.usu.ac.id/handle/123456789/5092
• http://repositori.usu.ac.id/handle/123456789/5091
• http://repositori.usu.ac.id/handle/123456789/5059
• http://repositori.usu.ac.id/handle/123456789/5060
• http://repositori.usu.ac.id/handle/123456789/5063
• http://repositori.usu.ac.id/handle/123456789/5066
• http://repositori.usu.ac.id/handle/123456789/5068
• http://repositori.usu.ac.id/handle/123456789/5073
• http://repositori.usu.ac.id/handle/123456789/5077
• http://repositori.usu.ac.id/handle/123456789/5081
• http://repositori.usu.ac.id/handle/123456789/5082
• http://repositori.usu.ac.id/handle/123456789/5093
• http://repositori.usu.ac.id/handle/123456789/5097
• http://repositori.usu.ac.id/handle/123456789/5061
• http://repositori.usu.ac.id/handle/123456789/5069
• http://repositori.usu.ac.id/handle/123456789/5071
• http://repositori.usu.ac.id/handle/123456789/5086
• http://repositori.usu.ac.id/handle/123456789/5087
• http://repositori.usu.ac.id/handle/123456789/5089
• http://repositori.usu.ac.id/handle/123456789/5100
• http://repositori.usu.ac.id/handle/123456789/5114
• http://repositori.usu.ac.id/handle/123456789/5117
• http://repositori.usu.ac.id/handle/123456789/5121
• http://repositori.usu.ac.id/handle/123456789/5123
• http://repositori.usu.ac.id/handle/123456789/5124
• http://repositori.usu.ac.id/handle/123456789/5125
• http://repositori.usu.ac.id/handle/123456789/5156
• http://repositori.usu.ac.id/handle/123456789/5159
• http://repositori.usu.ac.id/handle/123456789/5164
• http://repositori.usu.ac.id/handle/123456789/5177
• http://repositori.usu.ac.id/handle/123456789/5179
• http://repositori.usu.ac.id/handle/123456789/5181
• http://repositori.usu.ac.id/handle/123456789/5185
• http://repositori.usu.ac.id/handle/123456789/5186
• http://repositori.usu.ac.id/handle/123456789/5188
• http://repositori.usu.ac.id/handle/123456789/5191
• http://repositori.usu.ac.id/handle/123456789/5193
• http://repositori.usu.ac.id/handle/123456789/5194
• http://repositori.usu.ac.id/handle/123456789/5199
• http://repositori.usu.ac.id/handle/123456789/5204
• http://repositori.usu.ac.id/handle/123456789/5064
• http://repositori.usu.ac.id/handle/123456789/5065
• http://repositori.usu.ac.id/handle/123456789/5074
• http://repositori.usu.ac.id/handle/123456789/5078
• http://repositori.usu.ac.id/handle/123456789/5083
• http://repositori.usu.ac.id/handle/123456789/5088
• http://repositori.usu.ac.id/handle/123456789/5090
• http://repositori.usu.ac.id/handle/123456789/5129
• http://repositori.usu.ac.id/handle/123456789/5130
• http://repositori.usu.ac.id/handle/123456789/5132
• http://repositori.usu.ac.id/handle/123456789/5139
• http://repositori.usu.ac.id/handle/123456789/5160
• http://repositori.usu.ac.id/handle/123456789/5162
• http://repositori.usu.ac.id/handle/123456789/5163
• http://repositori.usu.ac.id/handle/123456789/5165
• http://repositori.usu.ac.id/handle/123456789/5166
• http://repositori.usu.ac.id/handle/123456789/5167
• http://repositori.usu.ac.id/handle/123456789/5168
• http://repositori.usu.ac.id/handle/123456789/5169
• http://repositori.usu.ac.id/handle/123456789/5171
• http://repositori.usu.ac.id/handle/123456789/5172
• http://repositori.usu.ac.id/handle/123456789/5173
• http://repositori.usu.ac.id/handle/123456789/5174
• http://repositori.usu.ac.id/handle/123456789/5180
• http://repositori.usu.ac.id/handle/123456789/5094
• http://repositori.usu.ac.id/handle/123456789/5096
• http://repositori.usu.ac.id/handle/123456789/5102
• http://repositori.usu.ac.id/handle/123456789/5113
• http://repositori.usu.ac.id/handle/123456789/5115
• http://repositori.usu.ac.id/handle/123456789/5118
• http://repositori.usu.ac.id/handle/123456789/5127
• http://repositori.usu.ac.id/handle/123456789/5134
• http://repositori.usu.ac.id/handle/123456789/5133
• http://repositori.usu.ac.id/handle/123456789/5135
• http://repositori.usu.ac.id/handle/123456789/5137
• http://repositori.usu.ac.id/handle/123456789/5141
• http://repositori.usu.ac.id/handle/123456789/5142
• http://repositori.usu.ac.id/handle/123456789/5143
• http://repositori.usu.ac.id/handle/123456789/5151
• http://repositori.usu.ac.id/handle/123456789/5152
• http://repositori.usu.ac.id/handle/123456789/5153
• http://repositori.usu.ac.id/handle/123456789/5154
• http://repositori.usu.ac.id/handle/123456789/5155
• http://repositori.usu.ac.id/handle/123456789/5157
• http://repositori.usu.ac.id/handle/123456789/5158
• http://repositori.usu.ac.id/handle/123456789/5196
• http://repositori.usu.ac.id/handle/123456789/5200
• http://repositori.usu.ac.id/handle/123456789/5095
• http://repositori.usu.ac.id/handle/123456789/5147
• http://repositori.usu.ac.id/handle/123456789/5148
• http://repositori.usu.ac.id/handle/123456789/5098
• http://repositori.usu.ac.id/handle/123456789/5099
• http://repositori.usu.ac.id/handle/123456789/5101
• http://repositori.usu.ac.id/handle/123456789/5103
• http://repositori.usu.ac.id/handle/123456789/5104
• http://repositori.usu.ac.id/handle/123456789/5105
• http://repositori.usu.ac.id/handle/123456789/5111
• http://repositori.usu.ac.id/handle/123456789/5112
• http://repositori.usu.ac.id/handle/123456789/5119
• http://repositori.usu.ac.id/handle/123456789/5120
• http://repositori.usu.ac.id/handle/123456789/5122
• http://repositori.usu.ac.id/handle/123456789/5126