1. Cognitive psychology and its implications;Anderson,1995
2. Educational psychology: A cognitive view;Ausubel,1968
3. Braverman, E. P. (1997). Investigating the relationship between trainees’ mental models and the transfer of training. PhD. dissertation, University of Maryland College Park.
4. A longitudinal study of invention and understanding in children’s multidigit addition and subtraction;Carpenter;Journal for Research in Mathematics Education,1998
5. Chen, C. (1997). Using similarity ratings and the Pathfinder algorithm for evaluating students’ cognitive structures in Newtonian mechanics. PhD. dissertation, The Ohio State University.