“Assessment of Some Potentially Toxic Inorganic Contaminants in Soil of the Obi Coalfield, Middle Benue Trough, Nigeria”. International Journal of Scientific Research and Management (IJSRM) 3, no. 3 (March 1, 2015). Accessed November 24, 2024. https://ijsrm.net/index.php/ijsrm/article/view/307.