1. Alevesn, V., McLaren, B. M., Sewall, J., & Koedinger, K. R. (2009). A new paradigm for intelligent tutoring systems: example-tracing tutors. International Journal of Artificial Intelligence in Education, 19, 105–154.
2. Amalathas, S., Mitrovic, A., & Ravan, S. (2012). Decision-making tutor: providing on-the-job training for oil palm plantation managers. Research and Practice in Technology Enhanced Learning, 7(3), 131–152. APSCE.
3. Anderson, J. R. (1993). Rules of the Mind. Hillsdale: Erlbaum.
4. Anderson, J. R., & Pelletier, R. (1991). A development system for model-tracing tutors. In Proceedings of the International Conference of the Learning Sciences (pp. 1–8). IL: Evanston.
5. Anderson, J. R., Conrad, F. G., & Corbett, A. T. (1989). Skill acquisition and the LISP Tutor. Cognitive Science, 13, 467–506.