References
- Metzler, M.W. (2000). Instructional Models for Physical Education. Boston: Allyn and Bacon.
- Slavin, R.E. (1977). Classroom reward structure: An Analytic and Practical Review. Review of Educational Research. 47, 633–650.
- Slavin, R.E. (1995). Cooperative Learning: Theory, Research, and Practice. Boston: Allyn and Bacon.