Sateesh Gudla, et al. “KEY BASED LEAST SIGNIFICANT BIT (LSB) INSERTION FORAUDIO AND VIDEO STEGANOGRAPHY”. International Journal of Computer Science and Engineering Research and Development (IJCSERD), vol. 3, no. 1, Mar. 2013, pp. 60-69, https://ijcserd.in/index.php/home/article/view/IJCSERD_03_01_006.