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