Tantoni, A., and M. T. A. Zaen. “IMPLEMENTASI DOUBLE CAESAR CIPHER MENGGUNAKAN ASCII”. Jurnal Informatika Dan Rekayasa Elektronik, vol. 1, no. 2, Nov. 2018, pp. 24-32, https://e-journal.stmiklombok.ac.id/index.php/jire/article/view/56.