1. American Academy of Child and Adolescent Psychiatry (1998). Practice Parameters for the Assessment and Treatment of Children and Adolescents With Depressive Disorders. Joumal of the American Academy of Child and Adolescent Psychiatry. 37. 63S-83S.
2. American Psychiatric Association Committee on Nomenclature and Statistics (1980). Diagnostic and Statistic Manual of Mentol Disorders, Edition 3. Washington: American Psychiatric Association.
3. American Psychiatric Association Committee on Nomenclature and Statistics ('994). Diagnostic and Statistic Manual of Mentol Disorders, Edition IV-R. Washington: American Psychiatric Association.
4. Axline, V.M. (1947). Play Therapy. New Vork: Ballantine Books.
5. Freud, A. (1965). Normality and Pathology in Childhood. New Vork: International Universities Press.