1. D. P.Ausubel, The Psychology of Meaningful Verbal Learning, (Grune and Stralton, N.Y., 1963).
2. S. F.Brown, ?Learning by Discovery in Mathematics: Rationale, Implementation and Misconceptions?, Educational Theory, Volume 21, Summer 1971, Number 3, pp. 232?260.
3. General Introduction in Nuffield Physics Teachers' Guides I and III (Longmans/Penguin 1966).
4. A. S. Fish and B. Goldman, ?Inquiry Method: Three Interpretations?, The Science Teacher, February, 1966, pp. 13?15.
5. J. B. Conant (ed.), Harvard Case Histories in Experimental Science, Volume I and II (Harvard University Press, 1966).