Hollinger R. C. (1997) Crime, Deviance and the Computer. Brookfield, VT: Dartmouth Publishing Company.
Sammes T. and Jenkinson B. (2000) Forensic Computing: A Practitioner's Guide, London: Springer.
Schneier B. (1996) Applied Cryptography: Protocols, Algorithms, and Source Code in C. New York: John Wiley & Sons.
Singh S. (2000) The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography. New York: Anchor Books.