Chanie, Kassa, and Tsegaye Molla. “Estimation of Technical Efficiency of Sorghum Production in Dejen District, North-West Ethiopia”. East African Journal of Agriculture and Biotechnology 6, no. 1 (November 22, 2023): 459-473. Accessed July 3, 2024. https://journals.eanso.org/index.php/eajab/article/view/1590.