Reza Feris Perdana, Kartini Siagian, and Ellyzabeth Siswardani. “Pentingnya Standard Operating Procedure (SOP) Terhadap Kedisiplinan Karyawan Di Kafe Jamu Acaraki”. Jurnal Manajemen Pariwisata dan Logistik 2, no. 1 (March 7, 2024). Accessed April 18, 2026. https://e-journal.lemondial.ac.id/index.php/smc/article/view/46.