http://en.wikipedia.org/wiki/Personality_psychology

http://www.smarter.com/psychology-counseling-books/theory-of-personality-the-psychology-of-personal-constructs-the-norton-library-/pd--ch-1--pi-1681435.html

http://psychology.about.com/od/psychology101/u/psychology-theories.htm

http://www.shop.com/+-p127072957-st.shtml

http://www.target.com/Theory-Personality-Psychology-Personal-Constructs/dp/0393001520

http://psychology.about.com/od/personalitydevelopment/p/personality.htm

http://www.wilderdom.com/personality/personality.html

http://psychology.jrank.org/pages/484/Personality.html

http://psychology.wikia.com/wiki/Japanese_blood_type_theory_of_personality

http://shopping.yahoo.com/p:Theory%20of%20Personality:%20The%20Psychology%20of%20Personal%20Constructs:3000201973