1. Aiken, L. R. (1996). Personality assessment: Methods and practices. Seattle, WA: Hogrefe & Huber.
2. Allport, G. W. (1937). Personality: A psychological interpretation. New York: Henry Holt.
3. Allport, G. W. (1955). Becoming: Basic considerations for a psychology of personality. New York: Yale University Press.
4. Arthur, A. Z. (1966). A decision-making approach to psychological assessment in the clinic. Journal of Consulting Psychology, 30, 435–438.
5. Brentano, F. (1973). Psychology from an empirical standpoint. New York: Humanities Press.