AZMI, F.; ANUGRAHWATY, R. Analisis Matriks 5x7 Pada Kriptografi Playfair Cipher. Sinkron : jurnal dan penelitian teknik informatika, [S. l.], v. 1, n. 2, 2017. Disponível em: https://jurnal.polgan.ac.id/index.php/sinkron/article/view/32. Acesso em: 27 jul. 2024.