MOHAMAD JEFFERYDIN, SITI NUR NAJAH NAZIHAH, Mohd Arif Rosli, and Nor Haslina Hashim. 2022. “Comparative Study on Treatment of Wastewater Using Natural and Artificial Coagulants”. Progress in Engineering Application and Technology 3 (2): 129-37. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/6341.