1. Abramowitz, M. and Stegun, I.A. eds. (1965)., ‘Handbook of Mathematical Functions with Formulas, Graphs and Tables’, National Bureau of Standards, Applied Mathematics Series, Vol. 55.
2. Working Paper #81-001, Revised April 1982, Department of Industrial Engineering;K.A. Ariyawansa,1982
3. Fraser, D.A.S. (1968)., ‘The Structure of Inference’, John Wiley & Sons, Inc., New York.
4. Fraser, D.A.S. (1974)., ‘Comparison of Inference Philosophies’, in Information, Inference and Decision, ed. G. Menges, D. Reidel Publishing Company, Dordrecht, Holland, pp. 77–98.
5. Lee, K.R. (1981)., private communication.