Hassan, Mudassir, and Lawal Idris Sada. “Pollution Status of Groundwater Resource by Some Heavy Metals Using Index Approach in Some Part of Nasarawa Area, Kano State, Nigeria”. UMYU Scientifica 3, no. 1 (March 6, 2024): 95–102. Accessed November 23, 2024. https://scientifica.umyu.edu.ng/index.php/scientifica/article/view/290.