1. Ackerman, J. M. (1972). Operant conditioning: Techniques for the classroom teacher. Scott Foresman.
2. Alexander, P. A., & Winne, P. H. (Eds.). (2006). Handbook of educational psychology. Lawrence Erlbaum Associates Publishers.
3. Amidon, E. J., & Hough, J. B. (Eds.). (1967). Interaction analysis: Theory, research and application. Addison-Wesley.
4. Bandura, A. (1997). Self-efficacy: The exercise of control. W.H. Freeman and Sons.
5. Barnett, R. L. (2004). Learning for an unknown future. Higher Education Research & Development, 23(3), 247–260. https://doi.org/10.1080/0729436042000235382