Chala, Dubale Befikadu, and Yonas Ragassa Beyene. “Rural Energy Sources and Energy Consumption Pattern in Selected Districts of Jimma and Illubabor Zones, South-Western Ethiopia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 17, no. 1 (October 29, 2014): 325–329. Accessed October 20, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/2952.