Gour, Ritik, and Amar Nayak. “An Improved Reversible Data Hiding With Hierarchical Embedding for Encrypted Images and BBET”. International Journal of Advanced Computer Technology 12, no. 6 (December 25, 2023): 1-10. Accessed December 26, 2024. http://ijact.org/index.php/ijact/article/view/138.