9Wilson, P. (1993). Pushing the Edge. M. Milstein & Associates (Eds.), Changing the Way We Prepare Educational Leaders[C]. Newbury Park, CA: Corwin, 1993. 223.
10Sykes, G. Public Policy and the Problem of Teacher Quality: The Need for Screens and Magnets. L. Shulman & G.Sykes (Eds.), Handbook of Teaching and Policy. New York,NY: I.ongman, 1983. 97-125.
