1. Angyal, A. (1941). Foundations for a science of personality. New York: Oxford Press.
2. Appel, J., & Kim-Appwel, D. (2010). The multipath approach to personality: Towards a unified model of self. Psychology, 1, 273–281.
3. Butz, M.R. (1997). Chaos and complexity: Implications for psychologica theory and practice. New York: Taylor & Francis.
4. Block, J. (2002). Personality as an affect-processing system: Toward and integrative theory. Mahwah: Lawrence Erlbaum Associates, Publishers.
5. Bornstein, R. F. (2005). Psychodynamic theory and personality disorders. In S. Strack (Ed.), Handbook of personology and psychopathology (pp. 164–180). Hoboken: Wiley.