1. Self-Esteem Inventory-Form B;Coopersmith,1975
2. Coefficient alpha and the internal structure of tests;Cronbach;Psychometrika,1951
3. Effects of self-concept in learning with gifted children;Dean;Journal of Educational Research,1977
4. Children's Depression Inventory;Kovacs,1979
5. Rating scales to assess depression in school-aged children;Kovacs;Acta Paedopsychiatrica,1981