The Determinants of Technical Efficiency of Farmers in Teff, Maize and Sorghum Production: Empirical Evidence from Central Zone of Tigray Region. EJE [Internet]. 2015 Dec. 15 [cited 2026 Jul. 15];23(2):1-36. Available from: https://ethiopianjournalofeconomics.org/index.php/EJE/article/view/147