D. F. I, G.N P. GEOPHYSICAL SURVEY ON GROUNDWATER PREDRILL FOR THE CONSTRUCTION OF WATER BOREHOLE IN OBIO/AKPOR LOCAL GOVERNMENT AREA, RIVERS STATE, NIGERIA. bj [Internet]. 2023 Nov. 17 [cited 2026 Apr. 30];:12. Available from: https://bwjournal.org/index.php/bsjournal/article/view/1600