Kamal Batcha, Fatimah, Agamuthu, P, and Shaliza Ibrahim. “A Study of the Ampang Landfill Leachate Characteristics and Its Effects on River Water Quality Parameters”. Malaysian Journal of Science 22, no. 1 (March 27, 2003): 43–53. Accessed May 19, 2024. http://mjs.um.edu.my/index.php/MJS/article/view/8799.