NEGATU, B. S. A Study on Challenges of Tax Revenue Assessment and Collection in Ethiopia with Reference to Custom and Revenue Authority. Asian Journal of Managerial Science, [S. l.], v. 8, n. 3, p. 1–6, 2019. DOI: 10.51983/ajms-2019.8.3.1628. Disponível em: https://ajmsjournal.org/index.php/ajms/article/view/1628. Acesso em: 18 oct. 2024.