Sinaga, Hot Bonar Ampuan, and Nensi Lapotulo. “PERANAN ROOM ATTENDANT DALAM MENANGANI HYGIENE DAN SANITASI KAMAR DI OS HOTEL BATU AJI BATAM”. JURNAL MEKAR 1, no. 2 (December 1, 2022): 62–68. Accessed July 6, 2024. https://jurnal.btp.ac.id/index.php/mekar-btp/article/view/65.