N. NAAZIE., A.; S. R., B.; A. ATINDANA, V. The Effects of Bad Roads on Transportation System in the Gushegu District of Northern Region of Ghana. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 40, n. 1, p. 168–185, 2018. Disponível em: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3928. Acesso em: 1 mar. 2024.