Spatio-temporal Economic Sustainability Convergence in Koga Irrigation and Watershed Project, Amhara Region, Ethiopia. Ethiopian Journal of Economics, [S. l.], v. 31, n. 2, p. 73–124, 2023. Disponível em: https://ethiopianjournalofeconomics.org/index.php/EJE/article/view/246.. Acesso em: 17 aug. 2026.