1. Balaguer, I., Castillo, I., & Duda, J. L. (2008). Apoyo a la autonomía, satisfacción de las necesidades, motivación y bienestar en deportistas de competición: un análisis de la teoría de la autodeterminación. Revista de psicología del deporte, 17(1), 123-139.
2. Bayraktar, G. 2011. The Effect of Cooperative Learning on Students' Approach to General Gymnastics Course and Academic Achievements. Educational Research and Reviews 6(1): 62-71.
3. Behzadnia, B., & Deci, E. L. (2017). Teachers' Autonomy Support and Positive Physical-Education Outcomes. Psychological inquiry, 11(4), 227-268.
4. Carlson, T. B., & Hastie, P. A. (1997). The student social system within sport education. Journal of teaching in physical education, 16(2), 176-195. https://doi.org/10.1123/jtpe.16.2.176
5. Casey, A. (2013). Seeing the Trees not just the Wood': Steps and not just Journeys in Teacher Action Research. Educational Action Research 21(2): 147 -163. https://doi.org/10.1080/09650792.2013.789704