1. Freed A.M. TA for Kids. Jalmar Press, Sacramento, California, 1971.
2. A locus of control scale for children.
3. Coopersmith S. The Antecedents of Self-Esteem. W.H. Freeman, San Francisco, 1967.
4. Harris T.A. I'm OK—You're OK. Avon, New York, 1973.