Geophysical and Geotechnical Investigations of the Subsurface for Construction Purposes at Federal College of Education Osiele, Abeokuta, Southwestern Nigeria. njtep [Internet]. 2024 Feb. 6 [cited 2025 Sep. 3];1(1):9-21. Available from: https://njtep.nipngr.org/index.php/njtep/article/view/12