TILAHUN, Zewde Alemayehu. Efforts Initiated to Ensure Environmental Sustainability in Ethiopia . International Journal of Scientific Research in Civil Engineering, [S. l.], v. 3, n. 6, p. 01–14, 2019. Disponível em: https://ijsrce.com/index.php/home/article/view/IJSRCE19343.. Acesso em: 22 jul. 2024.