F. Yunila, K. Cahyani Ermawati, and T. Akiriningsih, “Pengaruh Kualitas Pelayanan Guest Relation Officer Terhadap Kepuasan Tamu di Hotel JW Marriott Surabaya”, Jurnal Pariwisata Indonesia, vol. 16, no. 1, pp. 1–11, Aug. 2020.