20200206093200.0 Widyakala 2597-8624 2337-7313 2597-8624 Widyakala : Journal of Pembangunan Jaya University (Online) 2597-8624 Widyakala : Journal of Pembangunan Jaya University (Online) 2597-8624 Widyakala http://ojs.upj.ac.id/index.php/journal_widya Indonesia