REFERENCES
- Martin Gardner, Aha! Gotcha, W. H. Freeman and Company, New York, 1981.
- Maurice Kraitchik, Mathematical Recreations, 2nd edition, Dover, New York, 1953.
- Dennis Wackerly, William Mendenhall, and Richard Sheaffer, Mathematical Statistics with Applications, 5th edition, Duxbury Press, New York, 1996.