Suleiman, A.U., Dogarai, S.B.B., Kwazo, H.A., Mohammed, S. and Bagna, E. (2021) “Extraction of Heavy Metal in Tannery Effluent Using Abundant Agricultural Wastes ”, International Journal of Science for Global Sustainability, 6(4), p. 9. Available at: https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/66 (Accessed: 7 May 2026).