M.E. Pattison : "Evaluation Studies of Group Psychotherapy ", International Journal of Group Psychotherapy, U.S.A., Vol. XV, No. 3, p. 382, July 1965.
2.
S.R. Slavson : "Parallelism in the Development of Group Psychotherapy ", International Journal of Group Psychotherapy, U.S.A., Vol. IX, No. 4, p. 459, October 1959.
3.
D.M. Gottfredson : "The Practical Application of Research", Canadian Journal of Corrections, Vol. V, No. 4, p. 15.
4.
L.R. Wolberg: The Technique of Psychotherapy, New York, Grune and Stratton, p. 869, 1954.
5.
Gene G.Kassebaum, David A. Ward and Daniel M. Wilner : Group Treatment by Correctional Personnel—A survey of the California Department of Corrections, Youth and Adult Corrections Agency, Board of Corrections Monograph No. 3, Sacramento , U.S.A., 1963.
6.
Gene G. Kassebaum and David A. Ward, et al: "Job Related Differences in Staff attitudes toward Treatment in a Women Prison", Pacific Sociological Review, U.S.A., Vol. V, No. 2, pp. 83-88, 1962.
7.
Jay Campbell: The California Medical Facility Research Program, California Department of Corrections, Research Division, Vacaville Research Center, Vacaville, California, October 1964. (Dittoed Manuscript.)