1. http://www.erg.abdn.ac.uk/users/gorry/course/lan-pages/enet-calc.html
2.http://www.infocellar.com/networks/ethernet/frame.htm
3.http://www.cpe.ku.ac.th/~nguan/presentations/datacom/ethernet.pdf
4.http://www.bostontech.net/assets/files/TechBrief1_P1.pdf
5.http://en.wikipedia.org/wiki/Ethernet
6.http://www.eecs.wsu.edu/~hauser/teaching/CS455-F01/LectureNotes/4-10-4up.pdf
7.http://www.2000trainers.com/cisco-ccna-02/ccna-ethernet-frame-types
8.http://technet.microsoft.com/en-us/library/cc976887.aspx
9.http://www.wordiq.com/definition/Ethernet
10.http://sit.iitkgp.ernet.in/archive/teaching/internetTech/tcp/www.geocities.com/SiliconValley/Vista/8672/network/ethernet.html