Impact of Internal Audit Control System Onoperational Efficiency (A Study of a Transport Company). Global Journal of Management and Business Research, [S. l.], v. 21, n. D1, p. 61–78, 2021. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/3440. Acesso em: 2 sep. 2026.