MUHAMMAD IRWAN PADLI NASUTION; M.IKHSAN. Application of Management Information Systems in Improving Operational Efficiency in Trading Companies. ISNU Nine-Star Multidisciplinary Journal, [S. l.], v. 2, n. 3, p. 447–452, 2025. DOI: 10.70826/ins9mj.v2i3.939. Disponível em: https://journal.isnu-sumut.org/index.php/ins9mj/article/view/939. Acesso em: 28 mar. 2026.