FATOKI, O.; GOGWANA, P.; OGUNFOWOKAN, A. Pollution assessment in the Keiskamma River and in the impoundment downstream. Water SA, [S. l.], v. 29, n. 2, p. 183–188, 2003. DOI: 10.4314/wsa.v29i2.4854. Disponível em: https://www.ajol.info/index.php/wsa/article/view/4854. Acesso em: 9 nov. 2026.