1. Karpicke JD, Roediger HL. The critical importance of retrieval for learning. Science. 2008;319:966–968.
1. Genesee F. Second language learning through immersion: A review of U.S programs. Rev Educ Res. 1985;55(4, Winter):541–561.
2. Grube, G.M.A., Reeve C.D.C., 1992. Plato: Republic. Hackett Publishing Co., Inc.
3. Hubel DH, Wiesel TN. Brain and visual perception: The story of a 25-year collaboration New York: Oxford University Press; 2004; 707.
4. Marr D. Vision: A Computational Investigation into the Human Representation and Processing of Visual Information New York: W.H. Freeman and Company; 1982.
5. Whitehead AN. The aims of education. Daedalus. 1959;88.1:192–205.