References
- Selden A. Selden J. 1998 The Role of Examples in Learning Mathematics (http://www.maa.org/t_and_l/sampler/rs_5.html)
- Bogart K. P. 1988 Discrete Mathematics D.C. Heath and Company
- Tall D. 1992 The Transition to Advanced Mathematical Thinking: Functions, Limits, Infinity, and Proof edited by D. A. Grouws MacMillan Publishing Company pp. 495–511
- Chin E.-T. Tall D. 2002 University Students Embodiment of Quantifiers In Anne D. Cockburn & Elena Nardi (Eds), Proceedings of the 26th Conference of the International Group for the Psychology of Mathematics Education, 4, 273. Also available online at http://www.warwick.ac.uk/staff/David.Tall/pdfs/dot2002i-pme26-chin.pdf