Yafie, Said Ari. “The Importance of Order Taker Communication and Front Office for the Smooth Operation of the Housekeeping Department at Cambridge Hotel Medan”. Jurnal Online Mahasiswa 1, no. 3 (July 3, 2023). Accessed May 19, 2024. http://jom.poltekparmedan.ac.id/index.php/jomph/article/view/69.