Majestika, Aulia Qisthi, and Farida. “ANALISA PELAKSANAAN STANDAR OPERASIONAL PROSEDUR (SOP) PELAYANAN OLEH STAFF TICKETING DI SALES OFFICE GARUDA INDONESIA SENAYAN CITY”. Jurnal Ilmiah Manajemen dan Kewirausahaan 1, no. 2 (May 9, 2022): 243-257. Accessed July 22, 2024. https://ejurnal.stie-trianandra.ac.id/index.php/jimak/article/view/335.