Avwenaghegha OJ, Okoh H, Ogo BO. GEOPHYSICAL INVESTIGATION FOR ROAD PAVEMENT FAILURES ON NEW EKU ROAD SAPELE, DELTA STATE, SOUTHERN NIGERIA. NJP. 2021;30(2):151-156. Accessed June 12, 2025. https://njp.nipngr.org/index.php/njp/article/view/107