Mohammed, A. A., and Usman, N. “Investigation into the Effect of Abattoir Effluent on Open Hand Dug Wells and Boreholes at Zangon Shanu Zaria Kaduna”. Savannah Journal of Science and Engineering Technology 2, no. 3 (February 24, 2025): 88–93. Accessed September 12, 2025. https://www.sajsetjournal.com.ng/index.php/journal/article/view/100.