Kipngeno, Japhet, Paul Omondi, و Abdirizak Nunow. "Effects of Human Settlements on the Conservation of Sondu River Basin, Keny"a. East African Journal of Environment and Natural Resources 2, no. 2 (يوليو 12, 2020): 27-34. تاريخ الوصول يوليو 22, 2024. https://journals.eanso.org/index.php/eajenr/article/view/181.