Otutu Oseji J, Egbai JC. ELECTRICAL RESISTIVITY SURVEY FOR GROUNDWATER POTENTIAL AND ESTIMATION OF CLAY DEPOSIT IN ARAGBA-OKPE, OKPE LOCAL GOVERNMENT AREA, DELTA STATE NIGERIA. SJPU [Internet]. 2018Dec.20 [cited 2024Nov.22];31(6):52-6. Available from: http://pnap.ap.edu.pl/index.php/pnap/article/view/309