ELECTRICAL CHARACTERIZATION OF THE SUBSURFACE SOIL USING ELECTRICAL RESISTIVITY TOMOGRAPHY FOR FOUNDATION STUDIES AT AHMADU BELLO UNIVERSITY PHASE II, ZARIA, NIGERIA. FJS [Internet]. 2023 Apr. 10 [cited 2025 Sep. 17];3(3):109-14. Available from: http://162.254.38.185/index.php/fjs/article/view/1545