Birihanu, Gezahegn Alemayehu, Aman Rikitu Dassa, and Chala Hailu Husen. 2023. “Analysis of Tomato and Onion Production Efficiency in Ejersa Lafo District of West Shewa Zone, Oromia National Regional State, Ethiopia”. Journal of Science and Sustainable Development 10 (1):13-27. https://doi.org/10.20372/au.jssd.10.1.2022.0357.