References
- J.W Woods and H. Stark Probability and Random Processes, Prentice Hall, New Jersey, ISBN 0-13-178457-9, 2001.
- S.M Ross A Firs Course in Probability, Prentice Hall, New Jersey, ISBN 13-978-0-13-603313-4, 2002.
- S.M Ross A Firs Course in Probability, Academic Press, San Diego, ISBN 978-0-12-375686-2, 2002
- A. Populis and S.U. Pilai. Probability, Random Variables and Stochastic Processes, Mc Gaw Hill, New York, ISBN 0-07-366011-6, 2001