1. Allen, K. E., Hart, B., Buell, J. B., Harris, R. W., & Wolf, M. M. Effects of social reinforcement of isolate behavior of a nursery school child. Child Development, 1964, 34, 511–518.
2. Amidon, E. J., & Hoffman, C. Can teachers help the socially rejected? Elementary School Journal 1965, 66, 149–154
3. Argyle, M. Social interaction. Chicago: Aldine, 1969.
4. Asher, S. R. Children’s peer relations. In M. E. Lamb (Ed.), Sociopersonality development. New York: Holt, Rinehart & Winston, 1978.
5. Asher, S. R., & Hymel, S. Children’s social competence in peer relations: Sociometric and behavioral assessment. In J. D. Wine & M. D. Smye (Eds.), Social competence. New York: Guilford Press, 1981.