20210206221900.0 http://ojs.sttjaffray.ac.id/index.php/JJV71/index Jurnal Jaffray. 2407-4047 2407-4047 1829-9474 Jurnal Jaffray (Online) http://www.sttjaffray.ac.id/index.php/jurnal-jaffray.html 2407-4047 Indonesia Jurnal Jaffray. Jurnal Jaffray (Online) 2407-4047