1. Aitken, A., Harlan, A., Hankins, K., Michels, J., Moore, T. C., Oakes, W. P., et al. (2011). Increasing academic engagement during writing activities in an urban elementary classroom. Beyond Behavior, 20, 38–43.
2. Athens, E. S., & Vollmer, T. R. (2010). An investigation of differential reinforcement of alternative behavior without extinction. Journal of Applied Behavior Analysis, 43, 569–589.
3. Baer, D. M. (1981). How to plan for generalization. Austin, TX: Pro-Ed.
4. Baer, D. M., Stolz, S. B., & Fowler, S. A. (1984). Self-management tactics for the developmentally disabled. New York City: Pergamon Press.
5. Baer, D. M., Wolf, M. M., & Risley, T. R. (1968). Some current dimensions of applied behavior analysis. Journal of Applied Behavior Analysis, 1, 91–97.