1Wechsler D. Wechsler Intelligence Scale for Children - Revised Editions. New York: Psychological Corporation, 1974
2Wechsler D. Intelligence defined and undefined: A relativistic appraisal. American Psychologist, 1975,30: 135- 139
3Wechsler D. Wechsler Adult Intelligence Scale - Revised. New York: Psychological Corporation, 1981
4Wechsler D. The measurement and appraisal of adult intelligence (4th ed.). Baltimore: William & Wilkins, 1958
5Cohen J. The factorial structure of the WISC at ages 7 - 6, 10 - 6, and 13 - 6. Journal of Consulting Psychology, 1959, 23 : 285 - 299
6Horn J L. Theory of fluid and crystallized intelligence. In: Sternberg R J (Ed.). Encyclopedia of human intelligence. New York: Macmillan, 1994,443 - 451
7Carroll J B. Human cognitive abilities: A survey of factor- analytic studies. New York: Cambridge University Press, 1993
8Horn J L. Measurement of intellectual capabilities:A review of theory. In: McGrew K S, Werder J K,Woodcock R W. WJ - R technical manual. Chicago: Riverside, 1991, 197-232
9Steinberg R J. In search of the human mind. Fort Worth, TX: Harcourt Brace, 1999
10Horn J L, Noll J. Human cognitive capacities: Gf- Gc theory. In: Flanagan D P, Genshaft J L,Harrison P L (Eds.). Contemporary intelligence assessment: Theories, tests, and issues. New York.Guilford Press, 1997, 53-91
