1. American Psychiatric Association (2000). Diagnostic and statistical manual of mental disorders (4e ed., herziening). Washington, DC: Author.
2. Burlingame, G. M., Fuhriman A., & Johnson, J. E. (2001). Cohesion in group psychotherapy. Personality and social psychology bulletin, 38, 373–379.
3. Barlow, S. H. (2008). Group Psychotherapy Specialty Practice. Professional Psychology: Research and Practice, 39, 240–244.
4. Erdman, S. A. (2009). Therapeutic factors in group counseling: implications for audiologic rehabilitation. Asha, 16, 15–28.
5. Hill, C. E., Helms, J. E., Tichenor, V., Spiegel, S. B., O’Grady, K. E., & Perry, E. S. (1988). Effects of therapist response modes in brief psychotherapy. Journal of Counseling Psychology, 35, 222–233.