OJONIMI, T. .; ASUKE, F.; ONIMISI, M. .; ONUH, C. .; TSHIONGO-MAKGWE, N. Coal mining and the environmental impact of Acid Mine Drainage(AMD): A review. Nigerian Journal of Technology, [S. l.], v. 39, n. 3, p. 738–743, 2020. DOI: 10.4314/njt.v39i3.12. Disponível em: https://www.ajol.info/index.php/njt/article/view/199744. Acesso em: 18 sep. 2026.