SILVIA MARISTY, H. .; YASMIN SYIFANISENA, A.-N. UPAYA TELEPHONE OPERATOR DALAM MENINGKATKAN KUALITAS PELAYANAN DI JAMBULUWUK MALIOBORO HOTEL YOGYAKARTA . JURNAL NUSANTARA, [S. l.], v. 3, n. 1, p. 13–22, 2020. Disponível em: https://jurnal.akparda.ac.id/index.php/nusantara/article/view/14. Acesso em: 5 feb. 2025.