DERSO, Tesfamichael Fentie. An assessment of road and bridge construction in Simen and Begemider province, 1963-1991. Ethiopian Journal of Social Sciences, [S. l.], v. 9, n. 2, p. 111–132, 2023. DOI: 10.20372/ejss.v9i2.1735. Disponível em: https://journals.bdu.edu.et/index.php/ejss/article/view/1735. Acesso em: 22 feb. 2026.