Harahap, Fatma Suryani, Pendidikan Kimia, FKIP Universitas Muhammadiyah Tapanuli Selatan, Indonesia
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Vol 1, No 2 (2019): Budapest International Research in Exact Sciences, April - Articles
Effect of Heavy Metal Spread on River Flows from Gold Mining Toward Water Biota in Batang Gadis Mandailing Natal River
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