Dr. A. Dami, H. K. Ayuba, and O. Amukali. 2012. “Physico-Chemical and Bacterialogical Analysis of the Surface Water Used for Domestic Purposes in Okpai and Beneku, Delta State, Nigeria”. Global Journal of Human-Social Science 12 (B13):31-36. https://socialscienceresearch.org/index.php/GJHSS/article/view/451.