ABEGAZ, G. Cereal Productivity in Ethiopia: An Analysis Based on ERHS Data. Ethiopian Journal of Economics, [S. l.], v. 20, n. 2, p. 1–27, 2013. DOI: 10.4314/eje.v20i2. Disponível em: https://www.ajol.info/index.php/eje/article/view/84220. Acesso em: 18 aug. 2026.