1. Anderson, J. R., Boyle, C. F., & Yost, G. (1985). The geometry tutor.Proceedings of the International Joint Conference on Artificial Intelligence, Los Angeles.
2. Baker, E. L. (1984). Can educational research inform educational practice? Yes!Phi Delta Kappan, 65, 453–455.
3. Bonner, J. (1988). Implications of cognitive theory for instructional design: Revisited.Educational Communication and Technology Journal, 36, 3–14.
4. Burton, R. R., & Brown, J. S. (1979). Toward a natural language capability for computer-assisted instruction. In H. O'Neil (Ed.),Procedures for instructional systems development. New York: Academic Press.
5. Case, R., & Bereiter, C. (1984). From behaviorism to cognitive behaviorism to cognitive development: Steps in the evolution of instructional design.Instructional Science, 13, 141–158.