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		Dewi, G., 		Samson, S., & 		Usman, U.
2018 Nov 30.  ANALISIS KANDUNGAN LOGAM BERAT Pb DAN Cd DI MUARA SUNGAI MANGGAR BALIKPAPAN. ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science). [Online] 12:2