Mantolas, Christina, Laurensius Sandro Rero, & Martarida Bagaihing. " UPAYA PENINGKATAN PELAYANAN ROOMBOY PADA KEBERSIHAN KAMAR TAMU DI SOTIS HOTEL KUPANG." TOURISM: Jurnal Travel, Hospitality, Culture, Destination, and MICE [Online], 5.1 (2022): 22-30. Web. 27 Dec. 2024