ADAM, S. I.; LENGKONG, O.; PUNGUS, S. Pengembangan Aplikasi Mobile Presensi Mahasiswa Berbasis QR-Code Di Universitas Klabat. CogITo Smart Journal, [S. l.], v. 7, n. 2, p. 349–359, 2021. DOI: 10.31154/cogito.v7i2.343.349-359. Disponível em: https://cogito.unklab.ac.id/index.php/cogito/article/view/343. Acesso em: 3 aug. 2025.