Mantolas, Christina, 		Rero, Laurensius, AND 		Bagaihing, Martarida.
" UPAYA PENINGKATAN PELAYANAN ROOMBOY PADA KEBERSIHAN KAMAR TAMU DI SOTIS HOTEL KUPANG" <em>TOURISM: Jurnal Travel, Hospitality, Culture, Destination, and MICE</em> [Online], Volume 5 Number 1 (16 October 2022)