Links
[1] https://hootsgo.org/?q=node/6446
[2] http://www.chemguide.co.uk/physical/acidbaseeqia/theories.html
[3] http://chemwiki.ucdavis.edu/Physical_Chemistry/Equilibria/Acid-Base_Equilibria/1._Theories_of_Acids_and_Bases
[4] http://en.wikipedia.org/wiki/Acid%E2%80%93base_reaction
[5] http://www.infoplease.com/encyclopedia/science/acids-bases-acid-base-theories.html
[6] https://www.chem.wisc.edu/deptfiles/genchem/netorial/rottosen/tutorial/modules/acid_base/06lewis/lewis1.htm
[7] http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch11/lewis.php
[8] http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/acid2.html
[9] http://www.rsc.org/images/EiC%20v1i2%20The%20Theory%20of%20Acids%20and%20Bases_tcm18-230799.pdf
[10] http://hall24.edublogs.org/files/2014/04/8.1-Theories-of-acids-bases_wiki-1lyotx2.pdf
[11] http://www.t.soka.ac.jp/chem/iwanami/intorduct/ch09acids_bases.pdf
[12] http://www.saylor.org/site/wp-content/uploads/2011/01/Acids-and-Bases.pdf
[13] http://www.kau.edu.sa/Files/0009039/Subjects/05-Acid-base.pdf
[14] http://fc.sjsd.net/~gjohnson/FOV1-00053FB3/Chapter%2008.pdf
[15] http://www.chem1.com/acad/pdf/c1xacid1.pdf
[16] http://www.ic.sunysb.edu/Class/che131/S06/lectures/Lec-33-Chap-16-1.pdf
[17] http://www.utsa.edu/chem/faculty/dougfrantz/frantz_research_group/Classes_files/ACID%20BASE%20THEORY.pdf
[18] http://www.che.uc.edu/jensen/W.%20B.%20Jensen/Reprints/003-5%20Lewis%20Acid-Base.pdf