1[2]James D. Raths and Amy C. McAninch (1999). What counts as knowledge in teacher education. Stamford, CT: Ablex.
2[3]John Dewey(1965). Democracy and Education.Chicago.University of Chicago Press.
3Polanyi, M. , The Study of Man. London : Routledge & Kegan Paul,c1957,p12, p18.
4Sternberg, R. J. , What Do We Know About Tacit Knowledge? Making the Tacit Become Explicit, see Sternberg, R. J. & Horvath, J. A. ,ed. ,Tacit Knowledge in Professional Praetice:Researcher and Practitioner Perspectives,London:Lawrence Erlbaum Associates inc. c1999,p236.
