Wijayanto, H., B. Purnomo, and K. Cahyani Ermawati. “Pengaruh Kinerja Room Service Waiter Terhadap Kualitas Pelayanan Di Hotel Best Western Premier Solo Baru”. Jurnal Pariwisata Indonesia, vol. 15, no. 1, July 2019, pp. 29-39, http://jurnal.stpsahidsurakarta.ac.id/index.php/JPI/article/view/145.