1. Allport, G. W. (1961). Pattern and growth in personality. New York: Holt, Rinehart & Winston.
2. American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorder (4th ed., text rev.) In DSM-4 (4th ed., pp. 467). Washington, DC: APA.
3. Angyal, A. (1951). A theoretical model for personality studies. Journal of Personality, 20(1), 131–142. https://doi.org/10.1111/j.1467-6494.1951.tb01517.x.
4. Baumeister, R. F. (1998). The self. In D. T. Gilbert, S. T. Fiske, & G. Lindzey (Eds.), Handbook of social psychology (Vol. 1, 4th ed., pp. 680–740). New York: McGraw-Hill.
5. Berne, E. (1961). Transactional analysis in psychotherapy. Harmondsworth: Penguin.