Stevani Natalina and Yudha Wardhani (2025) “UPAYA PENINGKATAN KUALITAS LAYANAN LAUNDRY MELALUI PENGELOLAAN KELUHAN TAMU OLEH LAUNDRY ATTENDANT DI BEVERLY HOTEL BATAM ”, Journal of Innovation Research and Knowledge, 5(7), pp. 7753–7766. Available at: https://mail.bajangjournal.com/index.php/JIRK/article/view/11812 (Accessed: 7 March 2026).