Mahulauw, Syaifulrijal, et al. “Community-Based Digital Transformation for Rural MSMEs: QRIS Adoption, Digital Cashier Utilization, and Geo-Mapping Assistance in Katapang Hamlet, Indonesia”. Jurnal Penelitian Dan Pengabdian Kepada Masyarakat, vol. 2, no. 1, Feb. 2026, pp. 66-87, https://ejournal.selectaedukasi.id/index.php/jppm/article/view/44.