T, Irwan, and Agamuthu, P. “Electronics Wastewater Sludge Treatment Using S/S With Ordinary Portland Cement”. Malaysian Journal of Science (MJS) 24, no. 1 (January 31, 2005): 39–47. Accessed March 10, 2026. https://samudera.um.edu.my/index.php/MJS/article/view/8930.