1Seligman, M. (1998). Positive social science. American Psychological Association Monitor, 29, 4.
2Sefigman, M., & Csikszentmihalyi, M. (2000). Positive psychology: An introduction. American Psychologist,5-14.
3Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self- determination in human behavior. New York:plenum.
4Deci, E. (1992). On the nature and functions of motivation theories. Psychological Science, 3, 167 - 171.
5Ryan, R, M., & Connell, J. P. (1989). Perceived locus of cansality and internalization: Examining reasons for actingin two domains. Journal of Personality and Social Psychology, 57, 749 - 761.
6Kennon M Sheldon, Tim Kasser. (2001). Goals, congruence, and positive well- being: New empirical support for humanistic theories. The Journal of Humanistic Psychology, 41, 1 - 16.
7Sheldon, K. M., & Kasser, T (1995), Coherence and congruence: Two aspects of personality integration. Journal of Personality and Social Psychology, 68, 531 - 543.
8Argyle, M. (1999). Causes and correlates of happiness. In D. Kahneman, E. Diener, & N. Schwarz (Eds.), Well-being: The foundations of hedonic psychology (pp. 353 - 373). New York: Russell Sage.
9Sheldon, K. M,, & Elliot, A. J. (1999). Goal striving, need- satisfaction, and longitudinal well- being: The selfconcordance model. Journal of Personality and Social Psychology, 76,482 - 497.
10Sheldon, K. M., & Eliot, A. J.(1998). Not all personal goals are personal: Comparing autonomous and controlled reasons as predictors of effort and attainment. Personslity and Social Psychology Bulletin, 24, 546-557.
