http://ceit.aut.ac.ir/~shiry/lecture/Electronics/Diods.ppt
http://en.wikipedia.org/wiki/Diode
http://www.kpsec.freeuk.com/components/diode.htm
http://www.allaboutcircuits.com/vol_3/chpt_3/1.html
http://en.wikipedia.org/wiki/Zener_diode
http://bwrc.eecs.berkeley.edu/icbook/AdditionalMaterial/diode.pdf
http://bwrc.eecs.berkeley.edu/icbook/AdditionalMaterial/diode.pdf
http://www.circuitstoday.com/diode-clippers-applications
http://en.wikipedia.org/wiki/Avalanche_diode
http://www.electronics-tutorials.ws/diode/diode_4.html
http://en.wikipedia.org/wiki/Varicap
http://educypedia.karadimov.info/library/ch_2_pdf.pdf
http://amrita.vlab.co.in/?sub=1&brch=192&sim=1207&cnt=1
http://www.scribd.com/doc/54069125/Diode-Problems
http://www.southalabama.edu/engineering/ece/faculty/akhan/Courses/EE334-fall08/ECE%20334-chapter-2-diodes-rectifiers.pdf
http://ocw.uc3m.es/tecnologia-electronica/electronic-components-and-circuits/exercises-projects/OCW-ECC_S09_Diode_applications_Exercices.pdf
http://www.google.com/url?sa=t&rct=j&q=exercise+for+application+of+diode&source=web&cd=43&cad=rja&ved=0CEgQFjACOCg&url=http%3A%2F%2Fclasses.soe.ucsc.edu%2Fee070%2FFall07%2FUNSECURE%2FLectures%2FLecture%252026.PPT&ei=PW0vUODJEY2B4ASL-YHwCA&usg=AFQjCNGKCu7wA-HZf6tC8fHwHsM9Md0cKw
http://www.google.com/url?sa=t&rct=j&q=exercise+for+application+of+diode&source=web&cd=42&cad=rja&ved=0CEQQFjABOCg&url=http%3A%2F%2Fwww.calvin.edu%2F~pribeiro%2Fcourses%2Fengr311%2FLecture%2520Notes%2FChap3.ppt&ei=PW0vUODJEY2B4ASL-YHwCA&usg=AFQjCNFUSxa08kkW5Euu6MZEaIBe6hdj9A