ICHSAN, M.; HUTRIANTO, H. Implementasi Algoritma Vignere Chiper Berbasis QRCode Untuk Absensi Pegawai PT. Delameta Bilano Cabang Ruas Tol Palembang - Inderalaya. Journal of Information Technology Ampera, [S. l.], v. 3, n. 2, p. 2019–234, 2022. DOI: 10.51519/journalita.volume3.isssue2.year2022.page2019-234. Disponível em: https://journal-computing.org/index.php/journal-ita/article/view/280. Acesso em: 22 apr. 2026.