ICHSAN, M.; HUTRIANTO, H. Implementasi Algoritma Vignere Chiper Berbasis QRCode Untuk Absensi Pegawai PT. Delameta Bilano Cabang Ruas Tol Palembang - Inderalaya. Journal of Software Engineering Ampera, [S. l.], v. 3, n. 3, p. 170–185, 2022. Disponível em: https://www.journal-computing.org/index.php/journal-sea/article/view/267. Acesso em: 6 oct. 2026.