Indah Tjahjawulan and Dita Rachmasari (2025) “Instagram as a Medium for Activating the Ruangguru Brand to Upsurge User’s Loyalty and Engagement”, Pascasarjana ISBI Bandung Conference Series, 1(1). Available at: https://jurnal.isbi.ac.id/index.php/prosidingpasca/article/view/4571 (Accessed: 12 January 2026).