Safrianti, Ery, and Fernanda Fitriansyah. “Cryptography With Layered Algorithms for Text Security on Android”. International Journal of Electrical, Energy and Power System Engineering 3, no. 2 (June 7, 2020): 35-39. Accessed December 5, 2024. https://ijeepse.id/journal/index.php/ijeepse/article/view/41.