B. S. Lai and Shamsul Kamal Ahmad Khalid, “Android Audio Recorder Mobile Application with Digital Watermarking”, aitcs, vol. 3, no. 2, pp. 241–256, Nov. 2022, Accessed: Aug. 15, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/aitcs/article/view/7746