References
Clark, R.C., & Mayer, R.E. (2008). e-Learning and the Science of Instruction (2nd ed.). San Francisco, CA: Pfeiffer.
Engeström, Y. (1987). Learning by expanding: An activity-theoretical approach to developmental research. Helsinki, Finland: Orienta-Konultit.
Homberg, B. (2003). A Theory of Distance Education Based on Empathy. In M.G. Moore and W.G. Anderson (Eds.), Handbook of Distance Education (pp. 79-86). Mahwah, NJ: Lawrence Erlbaum.
Lou, Y., Abrami, P.C., & d'Apollonia, S. (2001) Small group and individual learning with technology: A meta-analysis. Review of Educational Research, 71, 449-521.
Mayer, R.E. Multimedia Learning. New York: Cambridge University Press.
Moore, M.G. (1993). Theory of Transactional Distance. In D. Keegan (Ed.), Theoretical Principles of Distance Education (pp. 22-38). London: Routledge.
National Research Council. (2000). How People Learn (expanded edition edited by J.D. Bransford, A.L. Brown, and R.R. Cocking). Washington, DC: National Academy Press.
Romiszowski, A.J. (2005). Online Learning: Are We on the Right Track? In G. Kearsley (Ed.), Online Learning: Personal Reflections on the Transformation of Education (pp. 321-349). Englewood Cliffs, NJ: Educational Technology Publications.
Vygotsky, L.S. (1978). Mind in Society: The Development of Higher Psychological Processes. Cambridge, MA: Harvard University Press.
