SUBSOIL CHARACTERIZATION FOR SHALLOW FOUNDATION CONSTRUCTION USING INTEGRATED GEOPHYSICAL AND GEOTECHNICAL METHODS IN NORTH-CENTRAL NIGERIA. FJS [Internet]. 2024 Oct. 31 [cited 2025 Sep. 12];8(5):350-64. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/2860