Fanny Ramadhani, dan Andy Satria. “Implementation of a QR Code-Based Attendance System for Students Using Web Technology ”. Altafani: Jurnal Pengabdian Masyarakat 2, no. 1 (Maret 7, 2026). Diakses November 15, 2026. https://jurnal2.umsu.ac.id/index.php/altafani/article/view/101.