NKAMBULE, Nonophile P.; BLIGNAUT, James N. The external costs of coal mining: the case of collieries supplying Kusile power station. Journal of Energy in Southern Africa, [S. l.], v. 23, n. 4, p. 85–93, 2012. DOI: 10.17159/2413-3051/2012/v23i4a3181. Disponível em: https://journals.assaf.org.za/index.php/jesa/article/view/3181. Acesso em: 19 jul. 2024.