KHALAF JABBAR, A.- lami A. . Analysis of Bus Transportation Mode in Central Europe. Cognitive Sustainability, Budapest, Hungary, v. 1, n. 4, 2022. DOI: 10.55343/cogsust.42. Disponível em: http://cogsust.com/index.php/real/article/view/42. Acesso em: 28 mar. 2024.