Akif, Muhammad, and Muhammad Zubair. “PRODUCTION OF ALUMINIUM SULPHATE AND UTILIZATION OF CLAY RESIDUE FROM KAOLINITE CLAY”. Biological Sciences - PJSIR 47, no. 3 (June 28, 2004): 183–186. Accessed July 3, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1514.