1. Achenbach, T. M. (1991). Manual for the Child Behavior Checklist/4-18 and 1991 profile. Burlington: University of Vermont, Department of Psychiatry.
2. Achenbach, T. M. & Edelbrock, C. S. (1983). Manual for the Child Behavior Checklist and Revised Child Behavior Profile. Burlington: University of Vermont Press.
3. American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.
4. Bandura, A. (1962). Social learning through imitation. In M. R. Jones (Ed.), Nebraska symposium on motivation (Vol. 10, pp. 211-274). Lincoln: University of Nebraska Press.
5. Barrett, P. M., Lowry-Webster, H. & Turner, C. (2000). FRIENDS program for children. Brisbane, Australia: Australian Academic Press.