SINAGA, I. P.; SUSILO, E. Aplikasi Absensi Perkuliahan Menggunakan QR Code Dinamis Dan Metode Geofence Berbasis Android. Jurnal CoSciTech (Computer Science and Information Technology), [S. l.], v. 5, n. 1, p. 1–9, 2024. DOI: 10.37859/coscitech.v5i1.6947. Disponível em: https://ejurnal.umri.ac.id/index.php/coscitech/article/view/6947. Acesso em: 1 may. 2026.