Sodamade, G. A., E.O. Longe, A. Sangodoyin, and K.O. Aiyesimoju. “Removal of Escherichia Coli and Other Contaminants in Wastewater Using Intermittent Sand Filtration”. Journal of Engineering Research 23, no. 1 (June 22, 2018): 83-89. Accessed April 3, 2025. http://jer.unilag.edu.ng/article/view/971.