Griffiths D. 'Contemporary Theory Development and Educational Administration' in Educational Administration. Vol. 6 No.2 Summer 1978 pp.80-93.
2.
Walker W. "Values, Unorthodoxy and the 'Unscientific' in Educational Administration Research", in Educational Administration, ibid, pp. 94-106.
3.
Walker, ibid, p. 97.
4.
Einstein's letter to Popper printed as an appendix to Popper K. (1972) (revised ed.) The Logic of Scientific Discovery. Hutchinson .
5.
Popper K. (1972 revised 4th edition) Conjectures and Refutations: the Growth of Scientific Knowledge. Routledge & Kegan Paul.
6.
Popper K. (1972 revised 3rd edition) The Logic of Scientific Discovery p.281.
7.
Kuhn T. ( 1970, 2nd Ed.) The Structure of Scientific RevolutionsUniversity of Chicago Press.
8.
8 Popper K. (1966, rev. 5th ed.) The Open Society. Vol. ii, pp. 19-20, for a description of how scientists work within ranges of error rather than precise, exact measurements.
9.
For general accounts of Popper's philosophy see Magee B. (1971) Modern British Philosophy. Secker & Warburg, and Magee B. (1973) Popper. Fontana.