http://www1.gantep.edu.tr/~bgonul/dersnotlari/sc/CHAPTER_4.ppt

http://www.doe.carleton.ca/~tjs/475_pdf_02/snew17.pdf

http://ns.ph.liv.ac.uk/~ajb/radiometrics/gamma_radiation/detectors/hole_flow.html

http://users.ece.gatech.edu/~alan/ECE4833/Lectures/Lecture3_Introduction2Semiconductors.pdf

http://hyperphysics.phy-astr.gsu.edu/hbase/solids/intrin.html

http://users.ece.gatech.edu/~alan/ECE4833/Lectures/Lecture3_Introduction2Semiconductors.pdf

http://ww2.it.nuigalway.ie/staff/pbigioi/ct101/CT101_IntroductionToElectronicCircuits.ppt

http://wps.prenhall.com/wps/media/objects/6955/7122251/ppts/Chapter14.ppt

http://www.ims.uconn.edu/~alpay/Courses/MMAT%20244/Lecture%2015.ppt

http://www.eecs.berkeley.edu/~hu/Chenming-Hu-ch2-slides.ppt

http://faculty.ksu.edu.sa/76326/Documents/Semi%20Conductors/Sem1.ppt

http://www.phys.ttu.edu/~cmyles/Phys5335/Lectures/Transport3%20-%20Hall%20Effect.ppt

http://www.physics.qc.edu/pages/genack/Physics204/9%20Band%20Theory%20of%20Solids.ppt

http://hermes.eee.nott.ac.uk/teaching/h61ane/semiconductors.ppt

http://www.hep.fsu.edu/~wahl/Quarknet/pepperlect/conductivity.ppt

http://www.csun.edu/~bavarian/Courses/MSE%20227/Lectures_Exam3/ch12_Electrical_Properties.ppt

http://www.physics.sfasu.edu/markworth/phy110/PN%20Junction%20Devices.ppt

http://fa.wikipedia.org/wiki/%D8%AA%D8%AD%D8%B1%DA%A9%E2%80%8C%D9%BE%D8%B0%DB%8C%D8%B1%DB%8C

http://barghsara.com/nimehadi.php

http://emamreza6.robosch.com/Files/Posts/Portal22/%D8%AF%DB%8C%D9%88%D8%AF%20%DA%86%DB%8C%D8%B3%D8%AA%20%D8%9F.ppt

http://ceit.aut.ac.ir/~shiry/lecture/Electronics/Diods.ppt