Carl R. Rogers, On Becoming a Person. Boston: Houghton Miffling Company, 1961, pp. 39-58.
2.
Charles B. Truax and Robert R. Carkhuff , Toward Effective Counseling and Psychotherapy: Training and Practice. Chicago: Aldine Publishing Company, 1967, p. 225.
3.
W. Schofield, Psychotherapy: The Purchase of Friendship. Englewood Cliffs, New Jersey: Prentice-Hall, 1964.
4.
Leland P. Bradford, Jack R. Gibb, and Kenneth D. Beene , T-Group Theory and Loboratory Method. New York: John Wiley and Sons, Inc., 1964, p. 30.
5.
Ibid., p. 106.
6.
William C. Schutz, Joy, New York: Grove Press , 1967, p. 21.