Al-Hasan, W. S. H., M. M. Ahmad Zabidi, and A. A.-H. Ab Rahman. “A New Steganography Technique Using Magic Square Matrix And Affine Cipher”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 2-8, July 2018, pp. 119-24, https://jtec.utem.edu.my/jtec/article/view/4472.