1. 1. B. Saha and S. Sharma, "Steganographic Techniques of Data Hiding Using Digital Images”, Defence Science Journal, vol. 62, pp. 11-18, 2012.
   2. S. Mohanapriya, "Design and implementation of steganography along with secured message services in mobile phones," International Journal of Emerging Technology and Advanced Engineering, ISSN, pp. 2250- 2459, 2012.
   3. M. Hariri, R. Karimi and M. Nosrati, "An introduction to steganography methods," World Applied Programming, vol. 1, no. 3, pp. 191-195, 2011.
   4. F. Djebbar, B. Ayad, K.A. Meraim and H. Hamam, "Comparative study of digital audio steganography techniques," EURASIP Journal on Audio, Speech, and Music Processing, vol. 2012, pp. 1-16, 2012.
   5. H. Zhu, R. Wang, D. Xu and X. Zhou, "Information Hiding Algorithm for H. 264 Based on the predition difference of Intra_4× 4," in Image and Signal Processing (CISP), 2010 3rd International Congress on, pp. 487-490, 2010.
   6. S.K. Kapotas, E.E. Varsaki and A.N. Skodras, "Data hiding in H. 264 encoded video sequences," in IEEE 9th Workshop on Multimedia Signal Processing, 2007., pp. 373-376, 2007.
   7. P. Su, M. Lu and C. Wu, "A practical design of high-volume steganography in digital video files," Multimedia Tools and Application, vol. 66, pp. 247-266, 2013.