AMEEN, Siddeeq Y.; AL-SHALCHI, Abbas A.; AL-BAYATI, Muhanad D. Design and Hardware Implementation of a Speech Cipher System. Nahrain University College of Engineering Journal, [S. l.], v. 10, n. 1, p. 1–10, 2008. Disponível em: https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/528.. Acesso em: 23 dec. 2024.