O.C A, B.E.B A. Qualitative characterization of groundwater sources around Nigeria National Petroleum Cooperation Oil Depot Aba, using multiple linear regressions modelling. IJAG [Internet]. 2018 Jan. 16 [cited 2024 Nov. 23];6(1):57-64. Available from: https://sciencepubco.com/index.php/IJAG/article/view/8789