OGEGE, J. O.; ODADA, E. O.; OLAGO, D. Geological Controls on Groundwater Geochemistry in Butula Area, Busia District, Kenya. African Journal of Science and Technology, [S. l.], v. 3, n. 2, 2002. DOI: 10.4314/ajst.v3i2.15265. Disponível em: https://www.ajol.info/index.php/ajst/article/view/15265. Acesso em: 13 sep. 2026.