Analisis Modifikasi Metode Playfair Cipher Dalam Pengamanan Data Teks. Indonesian Journal of Data and Science, [S. l.], v. 1, n. 1, p. 11–18, 2020. DOI: 10.33096/ijodas.v1i1.4. Disponível em: https://jurnal.yoctobrain.org/index.php/ijodas/article/view/4. Acesso em: 14 may. 2026.