Z Radzi, E, M. S Wahab, M Z Sahdan, R Hamdan, and A A Raus. “The Effects of Using Stepped Cascade Aeration and Multimedia Filter System for Iron Removal in Groundwater”. International Journal of Engineering & Technology 8, no. 1.1 (January 24, 2019): 201–206. Accessed November 24, 2024. https://sciencepubco.com/index.php/ijet/article/view/24660.