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- Theory and Practice of Group Psychotherapy by Irvin D. Yalom, 15 January, 1995
- Adventures in Group Theory: Rubik's Cube, Merlin's Machine, and Other Mathematical Toys by David Joyner, June, 2002
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- Founding Brothers: The Revolutionary Generation by Joseph J. Ellis, 05 February, 2002
- Student Manual for Theory and Practice of Counseling and Psychotherapy by Gerald Corey, Helen Corey, February, 2001
- Logic of Collective Action: Public Goods and the Theory of Groups by Mancur Olson, June, 1971
- What Went Wrong? : The Clash Between Islam and Modernity in the Middle East by Bernard Lewis, 07 January, 2003
- Wealth of Nations by Adam Smith, 04 March, 2003
- Joining Together: Group Theory and Group Skills (8th Edition) by David W. Johnson, Frank P. Johnson, 25 July, 2002
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