Wulanda, Olivia Diva, Andri Wibowo, Nensi Lapotulo, Devid Trinaldo Simatupang, and I Wayan Thariqy Kawakibi Pristiwasa. “STUDI EVALUASI OUTSOURCING PADA ASPEK PELAYANAN TAMU DI HOTEL HARMONI KOTA BATAM”. Journal of Innovation Research and Knowledge 4, no. 6 (November 7, 2024): 3583–3594. Accessed July 2, 2025. https://bajangjournal.com/index.php/JIRK/article/view/8870.