Corey, Gerald
Theory and practice of group counseling
Brooks/Cole, Cengage Learning, 2012
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Group insurance
edited by William F. Bluhm, Daniel D. Skwire, Stephen J. Kaczmarek and Kristi M. Bohn
ACTEX Publications, 2012
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Passman, Donald S.
The algebraic structure of group rings
John Wiley & Sons, 1979
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Levine, Baruch
Group psychotherapy / Baruch Levine
Prentince Hall, 1979
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Shulman, Lawrence
Dynamics and skills of group counseling
Brooks/Cole Cengage Learning, 2011
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