Survey of Steganography
A Survey of Steganography and Steganalysis Technique in Image, Text, Audio and Video as Cover Carrier
FREE-DOWNLOAD S Bhattacharyya – Journal of Global Research in Computer Science, 2011
One major category, perhaps the most difficult kind of steganography is text steganography
or linguistic steganography. The text steganography is a method of using written natural
language to conceal a secret message as defined by Chapman et al.
FREE IEEE PAPER