Hadi Jawad, N., and S. Hameed Abdulshaheed Muosaa. “Design Hybrid Encryption System Based on E0 Algorithm and A5/3 Algorithm in the Encryption Process”. Al-Qadisiyah Journal of Pure Science, Vol. 23, no. 2, May 2018, pp. 304 -12, doi:10.29350/jops.2018.23.2.764.