MOH. LUKMAN SHOLEH; LUTFI ALI MUHAROM. SMART PRESENSI MENGGUNAKAN QR-Code DENGAN ENKRIPSI VIGENERE CIPHER. Limits: Journal of Mathematics and Its Applications, [S. l.], v. 13, n. 2, p. 31–44, 2025. Disponível em: https://journal.its.ac.id/index.php/limits/article/view/5315. Acesso em: 6 dec. 2025.