Moh. Lukman Sholeh, & Lutfi Ali Muharom. (2025). SMART PRESENSI MENGGUNAKAN QR-Code DENGAN ENKRIPSI VIGENERE CIPHER. imits: ournal of athematics and ts pplications, 13(2), 31–44. etrieved from https://journal.its.ac.id/index.php/limits/article/view/5315