1. Apter, M. (1988).Reversal theory. New York: Routledge.
2. Aristotle (1980).The nichomachean ethics (translated by D. Ross). Oxford: Oxford University Press.
3. Bruner, J. (1987). Life as narrative.Social Research, 54 11?32.
4. Cantor, N. & Langston, C. (1989). In L. Pervin (Ed.),Goal concepts in personality and social psychology. Hillsdale, NJ: Lawrence Erlbaum.
5. Csikszentmihalyi, M. (1975).Beyond boredom and anxiety. San Francisco: Jossey-Bass.