Islam Mohamed, Khalid El Drandaly, Walid Khedr, Ayman Mohamed Mostafa,. “A DIGITAL WATERMARKING FOR RELATIONAL DATABASE: STATE OF ART TECHNIQUES”. International Journal of Advanced Science and Technology 29, no. 3s (March 11, 2020): 870 - 883. Accessed April 20, 2024. http://sersc.org/journals/index.php/IJAST/article/view/5918.