2John Dewey. "The child and curriculum" in John Dewey on Education, ed.G, Archambault (New York, NY: Random House, 1902-1964): 339-358.
3Kathryn F. Cochran. Richard A. King, and James A. DeRuiter. Pedagogical content knowledge: A tentative model for teacher preparation, paper presented at the annual meeting of the American Educational Research Association, Chicago, IL, 1991-3-07.
5Lee S. Shulman. "Those who understand: Knowledge growth in teaching" .Educational Researcher, 1986-15-2 "Knowledge and teaching: Foundations of the new reform" .Harvard Educational Review, 1987-57-1.
