1. Adams, G. L., & Engelmann, S. (1996). Research on direct instruction: 25 years beyond DISTAR. Educational Achievement Systems.
2. Bereiter, C., & Engelmann, S. (1966). Teaching disadvantaged children in the preschool. Prentice Hall.
3. Binder, C., & Watkins, C. L. (1990). Precision teaching and direct instruction: Measurably superior instructional technology in schools. Performance Improvement Quarterly, 3(4), 74–96.
4. Engelmann, S. (1968). Relating operant techniques to programming and teaching. Journal of School Psychology, 6(2), 89–96. https://doi.org/10.1016/0022-4405(68)90002-2
5. Engelmann, S., Becker, W. C., Carnine, D., & Gersten, R. (1988). The direct instruction follow through model: Design and outcomes. Education and Treatment of Children, 11(4), 303–317.