Akh Fajar Rahman, Sri Sukarni, and Hanni Mafuah. “Strategi Guest Service Agent Dalam Memaksimalkan Efektfitas Kerja Di Hotel Royal Ambarrukmo Yogyakarta”. JURNAL NUSANTARA, vol. 6, no. 2, Sept. 2023, pp. 11-17, https://jurnal.akparda.ac.id/index.php/nusantara/article/view/69.