IVAN BENEDICT TAMBUNAN. TINJAUAN TENTANG TUGAS DAN TANGGUNG JAWAB ROOM SERVICE WAITER DI HOTEL JW MARRIOTT MEDAN. Jurnal Ilmiah Akomodasi Agung, [S. l.], v. 10, n. 2, p. 60–65, 2023. DOI: 10.51827/jiaa.v10i2.136. Disponível em: https://journal.akpardarmaagung.ac.id/index.php/JIAA/article/view/136. Acesso em: 21 jan. 2026.