hidayat, A., A. Sholahuddin, and R. Rosadi. “Cryptanalysis Menggunakan Methode Vigenere Cipher”. Prosiding - Seminar Nasional Teknik Elektro UIN Sunan Gunung Djati Bandung, Jan. 2018, pp. 314-7, //senter.ee.uinsgd.ac.id/repositori/index.php/prosiding/article/view/senter2017p35.