Bednar, R.L., and T.J. Kaul (1978) "Experiential group research: current perspectives," in S. L. Garfield and A. E. Bergin (eds.) Handbook of Behavior Change: an Empirical Analysis.New York: John Wiley.
2.
Evans, N.J. and P.A. Jarvis (1980) "Group cohesion, a review and reevaluation."Small Group Behavior11: 359-370
3.
. Lieberman, M.A., I.D. Yalom and M. Miles (1973) Encounter Groups: First FactsNew York: Basic Books.
4.
Wright, T.L., M.M. Manning, L.J. Ingraham, S.S. Spicer, and N.A. Vanzetti (1980) "The incremental validity of individual and total-group cohesiveness in relation to positive outcome in training groups."Catholic University of America. (unpublished)
5.
Yalom, I.D. (1975) The Theory and Practice of Group PyschotherapyNew York: Basic Books.
6.
Yalom, I.D., P.S. Houts, S.M. Zimerberg and K.H. Rand (1967) "Prediction of improvement in group therapy."Archives of General Psychiatry17: 159-168.