B.Geetha Rani, C. Vara Lakshmi ,. “Optimized Reserving Room Approach For Reversible Data Hiding Algorithm Before Encryption On Encrypted Digital Images”. International Journal of Engineering and Computer Science 4, no. 09 (September 28, 2015). Accessed May 2, 2024. http://ijecs.in/index.php/ijecs/article/view/3158.