AWANG ISKANDAR, D.; RAHHAL, A. B.; ABDUL, W. Block Based Image Steganography in Spatial and Frequency Domain. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 9, n. 2-10, p. 191–198, 2017. Disponível em: https://jtec.utem.edu.my/jtec/article/view/2725. Acesso em: 29 apr. 2024.