Mutemi, Dorcas, Moses Mwangi, et Charles Ndungu. « Spatiotemporal Variation of Shallow Groundwater Quality in Selected Parts of Kitui County, Keny »a. East African Journal of Environment and Natural Resources 8, no. 2 (juillet 7, 2025): 228-243. Consulté le août 11, 2025. https://journals.eanso.org/index.php/eajenr/article/view/3280.