Theory of Queues and their Application in the Ports of Saudi Arabia. Al-Adab Journal, [S. l.], n. 128, p. 113–144, 2019. DOI: 10.31973/aj.v0i128.392. Disponível em: https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/392.. Acesso em: 12 may. 2024.