1. Anderson, J. R. (1983). The architecture of cognition. Cambridge, MA: Harvard University Press.
2. Skill Acquisition and the LISP Tutor
3. Anderson, J. R., Corbett, A. & Reiser, B. P. (1987). Essential LISP. Reading, MA: Addison-Wesley.
4. Bereiter, C. & Scardamalia, M. (1989). Intentional learning as a goal of instruction. In L. B. Resnick (Ed.), Knowing, learning, and instructron: Essays in honor of Robert Glaser (pp. 361-392). Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.