1. Abdelwahab, A. A., & Hassaan, L. A. (2008, 18–20 March 2008). A discrete wavelet transform based technique for image data hiding. Paper presented at the radio science conference, 2008. NRSC 2008. National.
2. Abdul-mahdi, N. H., Yahya, A., Ahmad, R. B., & Al-Qershi, O. M. (2013). Secured and robust information hiding scheme. Procedia Engineering Journal, 53, 463–471.
3. Afrakhteh, M., & Ibrahim, S. (2010, 25–27 June 2010). Adaptive steganography scheme using more surrounding pixels. Paper presented at the Internatioal Conference on Computer Design and Applications (ICCDA), 2010.
4. Alturki, F., & Mersereau, R. (2001, 7–10 Oct 2001). Secure blind image steganographic technique using discrete Fourier transformation. Paper presented at the International Conference on Image Processing, 2001. Proceedings.
5. Amirtharajan, R., & Rayappan, J. B. B. (2012). Inverted pattern in inverted time domain for icon steganography. Information Technology Journal, 11(5), 587–595.