1. Anastasi, A. (1976). Psychologicaltesting(4th ed.). New York: Macmillan.
2. Bolton, B. (1978). Sixteen Personality Factor Questionnaire. In 0. K . Buros(Ed.), Theeighth mental measurement yearbook (Vol I). (pp. 1070-1080). Highland Park. NJ: Gryphon.
3. Byrne, D., McDonald, R. & Mikawa, J . (1963). Aooroach and avoidance affiliation motives. ~ d ; r n a l of personal it.^, 31. 2 1-37.
4. A Factor Analytic Integration of Imaginative and Performance Measures of the Need for Achievement
5. Cohen, J. & Cohen, P. (1975). Applied multiple regression/correlaiion analysis for the beha\. ioralsciences. Hillsdale. NJ: Erlbaum.