Widiastuti IM, Maizar A, Musa M, Arfiati D. CONCENTRATION OF LEAD (Pb) IN WATER, SEDIMENT AND Tubifex sp. IN THE METAL POLLUTED WATERS. JSAPI [Internet]. 2018Apr.28 [cited 2024Nov.21];9(1):23-0. Available from: https://journal.ibrahimy.ac.id/index.php/JSAPI/article/view/222