BEKELE, A.; VILJOEN, F.; AYELE, G. Effect of farm size on technical efficiency of TEF production: a case study of the Moretna-Jirru district, central Ethiopia. Ethiopian Journal of Development Research, [S. l.], v. 27, n. 1, p. 1–24, 2006. DOI: 10.4314/ejdr.v27i1.38630. Disponível em: https://www.ajol.info/index.php/ejdr/article/view/38630. Acesso em: 17 sep. 2026.