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http://en.wikipedia.org/wiki/MOSFET
http://en.wikipedia.org/wiki/FET
http://www.scribd.com/doc/18075134/2-FET-Biasing
http://www.mhhe.com/engcs/electrical/neamen01/etext/ch05.pdf
http://www.scitechpub.com/hawkins/hawkins_ch_3.pdf
http://193.140.122.139/electronics1/jae20990_ch04.pdf
http://openbookproject.net/electricCircuits/Semi/SEMI_5.html
http://ux.brookdalecc.edu/fac/engtech/andy/engi242/powerpoint/fet_dc_biasing.pdf
http://jameskbeard.com/Rowan/Electronics_I_ECE_Materials/MOSFET_Analysis_Biasing.pdf
http://www.hbcc.edu.sa/facpages/SyedMuhammadAsad/Data_files/PHYS%20162/Ch08.pdf
http://spider.cs.ntou.edu.tw/yen/Electronic981/Chapter_11_Lecture_PowerPoint.ppt
http://acpce.org/httpdocs/StudyMaterial-SE/FET-Basics-1.ppt
http://commons.bcit.ca/cbennie/files/FET%20Lect.ppt
http://www.allaboutcircuits.com/vol_3/chpt_5/1.html