MAHMUDAH, M.; IRAWATI, T. N. Cryptosystem Polyalphabetic Cipher Application. Jurnal Axioma : Jurnal Matematika dan Pembelajaran, [S. l.], v. 5, n. 1, p. 11–19, 2020. DOI: 10.36835/axi.v5i1.539. Disponível em: https://ejurnal.uij.ac.id/index.php/AXI/article/view/539. Acesso em: 15 oct. 2024.