Tarhda, Mohamed, Rachid Elgouri, and Laamari Hlou. “Audio Watermarking Systems - Design, Implementation and Evaluation of an Echo Hiding Scheme Using Subjective Tests and Common Distortions”. International Journal of Recent Contributions from Engineering, Science & IT (iJES) 1, no. 2 (November 2, 2013): pp. 27–36. Accessed April 20, 2024. https://online-journals.org/index.php/i-jes/article/view/3281.