MULTI-LEVEL STEGANOGRAPHY SYSTEM USING WAVELET TRANSFORM. Journal of Engineering and Sustainable Development, [S. l.], v. 22, n. 3, p. 50–61, 2018. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/373.. Acesso em: 15 may. 2024.