Kamal Batcha, Fatimah, Shaliza Ibrahim, and Agamuthu P. “Metallic Constituents in Water Samples from the Michu and Langat Rivers”. Malaysian Journal of Science 23, no. 1 (April 29, 2004): 105–112. Accessed November 22, 2024. https://mjs.um.edu.my/index.php/MJS/article/view/8501.