CLAASEN, T.; LEWIS, E. Nitrate and bacteriological assessment of groundwater in Omaheke region, Namibia. International Science and Technology Journal of Namibia, [S. l.], p. 056–067, 2018. Disponível em: https://journals.unam.edu.na/index.php/ISTJN/article/view/1216. Acesso em: 24 nov. 2024.