BRIGIDA ARIE MINARTININGTYAS; CAREL TAMBAGISTRA. PRESENSI KEHADIRAN MAHASISWA MENGUNAKAN QR-CODE DAN LAYANAN LOKASI BERBASIS ANDROID Studi Kasus: Sistem Akademik Universitas Kristen Immanuel. Infact: International Journal of Computers , [S. l.], v. 6, n. 01, 2022. Disponível em: https://journal.ukrim.ac.id/index.php/JIF/article/view/309. Acesso em: 6 nov. 2025.