4[3]Harold IK, Benjamin JS. Modern synopsis of comprehensive textbook of psychiatry Ⅳ. Baltimore/London:Williams & Wilkins 1985: 65- 89
5[4]Harold IK, Benjamin JS. Modern synopsis of comprehensive textbook of psychiatry Ⅳ. Finnergan. Editor. Baltimore/London: Williams & Wilkins 1985:38 - 45
6Kopta SM. The dose-effect relationship in psychotherapy: A defining achievement for Dr. Kenneth Howard. J Clin Psychol, 2003,59(7): 727-733.