A Review on Securing Audio Watermarking System using Discrete Fourier Transform for Copyright Protection. International Journal of Current Engineering and Technology, [S. l.], v. 5, n. 2, p. 781–784, 2015. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/2063. Acesso em: 12 apr. 2026.