1. Ainsworth, S., Major, N., Grimshaw, S.K., Hayes, M., Underwood, J.D., Williams, B., Wood, D.J.: REDEEM: Simple Intelligent Tutoring Systems From Usable Tools. In: Murray, T., Blessing, S., Ainsworth, S. (eds.) Tools for Advanced Technology Learning Environments. Kluwer Academic Publishers, Amsterdam (2003)
2. Lecture Notes in Computer Science;T. Aleahmad,2008
3. Aleven, V., McLaren, B.M., Sewall, J., Koedinger, K.R.: A New Paradigm for Intelligent Tutoring Systems: Example-Tracing Tutors. International Journal of Artificial Intelligence in Education 19, 105–154 (2009)
4. Lecture Notes in Computer Science;V. Aleven,2006
5. Bellifemine, F., Caire, G., Poggi, A., Rimassa, G.: JADE: A software framework for developing multi-agent applications. Lessons learned Information & Software Technology 50(1-2), 10–21 (2008)