Investigating The Index and Physical Properties of Soils to Be Used as Subgrade Material (In Case of Gilgel-Beles, Ethiopia). The Peerian Journal, [S. l.], v. 3, p. 18–29, 2022. Disponível em: https://www.peerianjournal.com/index.php/tpj/article/view/22. Acesso em: 2 may. 2026.