Physico-Chemical and Bacterialogical Analysis of the Surface Water Used for Domestic Purposes in Okpai and Beneku, Delta State, Nigeria. GJHSS [Internet]. 2013 Jan. 10 [cited 2026 Aug. 8];12(B13):31-6. Available from: https://socialscienceresearch.org/index.php/GJHSS/article/view/451