Elshafei, A. (1969). Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. The Institute of National Planning.
Chicago-referens (17:e uppl.)Elshafei, Alwalid. Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. Cairo: The Institute of National Planning, 1969.
MLA-referens (9:e uppl.)Elshafei, Alwalid. Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. The Institute of National Planning, 1969.