7[1]King R L. Classification of Student Modeling Approaches for Intelligent Tutoring. Technical Report MSSUCOE-ERC-98-4, Mississipi State University,1998.
8[2]Djordjevic-Kajan S, Mitrovic A, Stoimenov L. Instruct:Modeling Students by Asking Questions. In:User Modeling and User-Adapted Interaction. Netherlands: Kluwer Academic Publishers, 1996. 273~ 302.
9[3]Tsybenko Y. "Device Models" in Student Modeling. In: The Proceedings of International Conference on Artificial Intelligence in Education. Greer J. Washington :AACE, 1995. 525~532.
10[4]Hartley R ,Paiva A,Self J. Externalising Learner Models. In:The Proceedings of International Conference on Artificial Intelligence in Education. Greer J. Washington: AACE, 1995. 509~516.