Arham, Aulia, and Hanung Adi Nugroho. “Block-Based Optimization for Enhancing Reversible Watermarking Using Reduce Difference Expansion”. Communications in Science and Technology 9, no. 1 (July 12, 2024): 57-64. Accessed October 18, 2024. https://cst.kipmi.or.id/journal/article/view/1368.