BennisSheppard. A Theory of Group Development. Readings on the sociology of small groups by Mills & Rosenberg—Chapter 17. Prentice-Hall Inc.Englewood Cliffs W.J.
3.
WatersM. A.Art Therapy in Psychiatric Treatment. S. K. & F. Publications.
4.
FidlerFidlerO.T.A Communication process in psychiatry. McMillan Publishing Co., Inc.N.Y.
5.
BalesSlater. (1955). Role Differentiation in small decision making groups.
6.
FoulkesAntony. (1957). Group Psychotherapy. Harmondsworth: Penguin.
7.
RubinJ. A. (1975). Group Psychotherapy Psychodrama and Sociometry. 1975 Vol. 28 Pages 108–117. “Art Awareness”.