N. Sandeep, Sk. Heena Mobeen, V. Vijaya Lakshmi, S. Sivaji, and V. Gopi Krishna. “An Improved Method of Steganography Combined With Cryptography”. International Journal of Advance Engineering and Research Development (IJAERD), vol. 5, no. 3, Mar. 2018, pp. 539-45, https://ijaerd.org/index.php/IJAERD/article/view/2719.