3. Frankl, Victor E., Mans Search For Meaning, New York, Washington Square Press, 1985.
4. Social Science, Primis, New York, Mc Graw Hill, 1998.
5. http://www.psych.nwu.edu
6. http://www.psychology.com
7. http://www.psychology.ucdavis.edu
8. http://www.psychology.net
9. http://baldwin.apa.org:88/best/index.html
10. http://www.apa.org
11. http://www.runet.edu/ lridener/courses/SOCBIO.HTML