Jyoti Bala and Dr. Shweta Rai. “ROBUST DIGITAL WATERMARKING FOR DIGITAL IMAGES BASED ON DWT-SVD”. International journal of economic perspectives 16, no. 3 (March 31, 2022): 87–97. Accessed April 25, 2025. https://ijeponline.com/index.php/journal/article/view/404.