1. RFC 959, File Transfer Protocol,1985
2. R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee, RFC 2616, Hypertext Transfer Protocol Version 1.1, The Internet Society, Geneva, Switzerland, June 1999.
3. RFC 793, Transmission Control Protocol,1981
4. RFC 791, Internet Protocol;Postel,1981
5. Institute of Electrical and Electronics Engineers, IEEE 802-3: 2000 standard, Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) and Physical Layer Specifications 2000.