HAFIZ NANDA GINTING, S.; RHIFKY WAYAHDI, M.; GUNTUR, S. Playfair Cipher Algorithm in Learning Media. Jurnal Minfo Polgan, [S. l.], v. 11, n. 1, p. 9-14, 2022. DOI: 10.33395/jmp.v11i1.11560. Disponível em: https://jurnal.polgan.ac.id/index.php/jmp/article/view/11560. Acesso em: 14 aug. 2024.