1. 1. Niharika Ramacharla, Sindhu Priya and Dr.E. Logashanmugam, A Secure Image Steganography for speech data hiding in digital images, International Journal of Pure and Applied Mathematics, Volume 118 No. 17 2018, 509-522.
   2. Altaay,J.S.Sahib and Mazdak Zamani, An Introduction to Image Steganography Techniques, International Conference on Advanced Computer Science Applications and Technologies, 2012, pp.122-126.
   3. Divya Sharma, Five level cryptography in speech processing using Multi hash and repositioning of speech elements, International Journal of Engineering Technology and Advanced Engineering, Vol. 2, No. 5, PP. 21- 26, 2012
   4. Harjinder Kaur, Gianetan Singh Sekhon, A four level speech signal encryption algorithm, IJCSC, Vol. 3, No. 1, PP. 151-153, January 2012.
   5. Joyshree Nath, Saima Ghosh, Asoke Nath, Advanced digital steganography using encrypted secret message and encrypted embedded cover file, International Journal of Computer Applications, Vol. 46,No.14, PP. 1- 7,May 2012
   6. Obaidah A. Rawashdeh and Dr. Nedhal A. M. AlSaiyed, A Novel Approach for Integrating Image Steganography and Encryption, Int.J.Computer Technology & Applications,Vol 5 (6),1917-1923.
   7. Atee H., Ahmad R., and Noor N., Cryptography and Image Steganography using Dynamic Encryption on LSB and Color Image Based Data Hiding, Middle-East Journal of Scientific Research, vol. 23, no. 7, pp. 1450- 1460, 2015.
   8. Bin Li, Junhui He, Jiwu Huang, Yun Qing Shi. A survey on Image steganography and steganalysis, Volume 2, Number 2, April 2011.
   9. Mr . Vikas Tyagi, Mr. Atul kumar, Image Steganography Using Least Significant Bit With Cryptography, Journal of Global Research in Computer Science, Volume 3, No. 3, March 2012.
   10. Jain, Nitin, Sachin Mesh ram, and Shikha Dubey, Image Steganography Using LSB and Edge–Detection Technique, International Journal of Soft Computing and Engineering (IJSCE) ISSN (2012): 2231-2307.