Browsing Tesis Magister by Keyword "Department of Transportation"
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Pengaruh Paparan Timbal (Pb) terhadap Tekanan Darah pada Petugas Dinas Perhubungan (Dishub) Kota Medan Tahun 2017 (Universitas Sumatera Utara, 2018)The officers of Dishub (Department of Transportation) are the workers who are exposed to lead. In spite of the lead reduction in vehicle fuel, the officers of dishub have been chronically exposed. They have 8 working hours ...