1. Barkley, R. A. (1981). Hyperactive children. New York: Guilford.
2. Bates, J. E. (1980). The concept of difficult temperament. Merrill-Palmer Quarterly, 26, 299–319.
3. Binet, A., & Simon, T. (1916). The development of intelligence in children. (E. S. Kit, trans.). Baltimore, Md.: Williams & Wilkins.
4. Birns, B., Barten, S., & Bridger, W. H. (1969). Individual differences in temperamental characteristics of infants. Transactions of the New York Academy of Sciences, 31, 1071–1082.
5. Broman, S. (1979). Perinatal anoxia and cognitive development in early childhood. In T. M. Field (Ed.), Infants born at risk: Behavioral development. New York: SP Medical & Scientific Books.