AL Darrat, k., and A. Abushaala. “Copyright Protection Based on Hybrid Image Watermark (DCT) With Audio Watermark (EMD)”. The International Journal of Engineering & Information Technology (IJEIT) 12, no. 1 (August 11, 2024): 84–89. Accessed November 23, 2024. https://ijeit.misuratau.edu.ly/index.php/ijeit/article/view/481.