1. Bijou, S., & Ruiz, R. (Eds.). (1981). Behavior modification contributions to education. Hillsdale: Lawrence Erlbaum Associates Publishers.
2. Birnbrauer, J. S., Wolf, M. M., Kidder, J. D., & Tague, C. (1965). Classroom behaviour of retarded pupils with token reinforcement. Journal of Experimental Child Psychology, 2, 219–235.
3. Brigham, T. A., & Sherman, J. A. (1968). An experimental analysis of verbal imitation in preschool children. Journal of Applied Behavior Analysis, Summer 1(2), 151–158. doi:10.1901/jaba.1968.1-151. PMCID: PMC1310991.
4. Buell, Stoddard, Harris, & Baer (1968)
5. (Hart & Risley, 1995). For many years, teachers and 118 / May 2009. Behavioral Disorders, 34(3), 118-135.