BRENHARD MANGATUR TAMPUBOLON; LARSEN BARASA; AJI PERMANA; NURUL WAHYUNI; JAJA SUPARMAN. Tugboat Clearance SOP Enhancement for Maritime Port Service Quality. Harmony Management: International Journal of Management Science and Business, [S. l.], v. 2, n. 3, p. 106–113, 2025. DOI: 10.70062/harmonymanagement.v2i3.363. Disponível em: https://management.ifrel.org/index.php/HarmonyManagement/article/view/363. Acesso em: 2 mar. 2026.