Amosu Cyril Olumuyiwa , trans. “Reclamation of the Enugu Coal Mine Site at Abandonment”. Indian Journal of Environment Engineering (IJEE) 1, no. 2 (January 6, 2024): 18–24. Accessed May 3, 2025. https://www.journals.latticescipub.com/index.php/ijee/article/view/336.