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		Dewi, G., 		Samson, S., & 		Usman, U.
(2018).
 ANALISIS KANDUNGAN LOGAM BERAT Pb DAN Cd DI MUARA SUNGAI MANGGAR BALIKPAPAN.
<em>ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal Of Environmental Science), 12</em>(2), 117-124.
doi:10.24843/EJES.2018.v12.i02.p02