1. Bollen, K. A. (1989). A new incremental fit index for general structural equation models. Sociological methods and research, 17 (3), 303-316.
2. Brewer, B.W. (2009). Handbook of Sports Medicine and Science, Sport Psychology. Chichester: John Wiley and Sons Ltd.
3. Briere, N.M., Vallerand, R.J., Blais, M.R, Pelletier, LG. (1995). Development and validation of a scale on intrinsic and extrinsic motivation and lack of motivation in sports: The scale on motivation in sports. International journal of sport psychology, 26, 465–89.
4. Browne, M. W., Cudeck, R. (1993). Alternative ways of assessing model fit. Sage focus editions, 154, 136-136.
5. Byrne, B. (1989). A Primer of LISREL, Basic Assumptions and Programming for Confirmatory Factor Analysis Models. New York: S.Springer.