1. About the theory. (n.d.). Retrieved March 31, 2014, from http://www.selfdeterminationtheory.org/theory .
2. Arbuckle, J.L., & Wothke, W. (1999). Amos 4.1 user’s guide. Chicago: Marketing Department, SPSS Inc., SmallWaters Corporation.
3. Barker, C., Pistrang, N., & Elliott, R. (2002). Research methods in clinical psychology: an introduction for students and practitioners (2nd ed.). Chichester: Wiley.
4. Bartholomew, K. J., Ntoumanis, N., Ryan, R. M., Bosch, J. A., & Thøgersen-Ntoumani, C. (2011). Self-determination theory and diminished functioning: the role of interpersonal control and psychological need thwarting. Personality and Social Psychology Bulletin, 0146167211413125. doi: 10.1177/0146167211413125 .
5. Berliner, D. C. (1987). Simple views of effective teaching and a simple theory of classroom instruction. In D. C. Berliner & B. Rosenshine (Eds.), Talks to teachers (pp. 93–110). New York: Random House.