Browsing by Advisor "s, Indra Chahaya"
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Analisis Kadar Timbal (Pb) di Udara Ambien dan Tanah Areal Pertanian di Tepi Jalan Lubuk Pakam Deli Serdang Tahun 2019 (Universitas Sumatera Utara, 2019-08-02)The Development of technology and development in all sectors caused the transportation sector to run into an increase number of vehicles. In 2015 in Deli Serdang the amount of vehicles was 83,484 units. Vehicles use lead ...