Piaget
D Campbell, R. (1997). Jean Piaget's Genetic Epistemology: Appreciation and Critique. This is a revised version of two lectures presented at the Institute of Objectivist Studies Summer Seminar, Charlottesville, VA, July 7 and 8, 1997. Available online at: http://hubcap.clemson.edu/%7Ecampber/piaget.html
Berly A. Geber, ed. Piaget and Knowing Studies in Genetic Epistemology (3rd ed.). London: Routledge & Kegan Paul Ltd. pp. 13–16. ISBN 0 7100 8500 1. http://www.ablongman.com.
Piaget, J. (1968). Genetic Epistemology: A series of lectures delivered by Piaget at Columbia University, Published by Columbia University Press, translated by Eleanor Duckworth. Available online at: http://www.marxists.org/reference/subject/philosophy/works/fr/piaget.htm
Driscoll, Marcy Perkins. "6". In Arnis Burvikovs. Psychology of Learning for Instruction (3rd ed.). Boston: Pearson Education, Inc.. pp. 190–216. ISBN 0-205-37519-7. http://www.ablongman.com.
Singer, D. & Revenson, T. (1978). A Piaget Primer: How a Child Thinks. NY: International Universities Press, Inc.
Vuyk, Rita. "3". In Arnis Burvikovs. Overview and Critique of Piaget's Genetic Epistemology, 1965- 1980, Volume 1 (1st ed.). London: Academic Press Inc.. pp. 26. ISBN 0-12-728501-6.
Vygotsky
- http://golum.riv.csu.edu.au/~srelf/SOTE/EEL403/2HDT.htm#Sociocultural
- http://www.sk.com.br/sk-vygot.html
- http://www.phys.canterbury.ac.nz/nzip/educ/arc/_COOPvygotsky.html
Bruner
- Driscoll, M. P. (2005). Interactive theories of cognitive development. Psychology of Learning for Instruction. Toronto, ON: Pearson.
- Hamilton, E. K. (2010). Augmented reality in education. Retrieved from http://wik.ed.uiuc.edu/index.php/Augmented_Reality_in_Education
- Johnson, L., Levine, A., Smith, R., & Stone, S. (2010). The Horizon Report. Retrieved from http://wp.nmc.org/horizon2010/chapters/simple-augmented-reality/