Samriddhi Sharma, Saransh Goyal, Vartika Sharma. “Robust-Fragile Watermarking Model: A User Based Approach for Digital Images”. International Journal of Advanced Science and Technology, Vol. 29, no. 08, June 2020, pp. 4042-54, https://sersc.org/journals/index.php/IJAST/article/view/26220.