Erdisna, Erdisna, Deval Gusrion, and Febriyanno Suryana. “Sosialisasi Pemanfaatan Quick Responden Code Indonesia Standard (Qris) Dan Uang Eletronik (e-Money) Untuk Pembelian E-Book Di Era RI 4.0”. Jurnal Pengabdian Masyarakat Dharma Andalas 1, no. 2 (January 30, 2023): 74-79. Accessed July 15, 2026. http://103.241.192.17/~jurnalunidha/index.php/JPMDA/article/view/730.