Vincent, Emmanuel, and Joseph Mallo. “GEOTECHNICAL INVESTIGATION OF THE SUB-SOILS CONDITION AROUND YELWA NORTH CENTRAL PART OF NIGERIA FOR THE CONSTRUCTION OF INFRASTRUCTURES”. Nigerian Journal of Technology 42, no. 1 (May 7, 2023): 99–106. Accessed September 24, 2023. https://nijotech.com/index.php/nijotech/article/view/2773.