1. Attending The Joint Statistical Meeting, Chicago, Agu.4-7, 1996, U.S.A.
2. Conference on Mathematics and 21st Century, 15-20 Jan., 2000, Cairo, Egypt.
3. Fourth International Scientific Conference, Faculty of Science, Al-Azhar University, March 27-29, 2001, Cairo, Egypt.
4. 10 th International Symposium on Applied Stochastic Models and Data Analysis (ASMDA2001), June 12-15, 2001, Compiegne, France.
5. The Sixth Meeting of Saudi Association for Mathematical Sciences, April 9-10, 2002, King Saud University, Riyadh, Saudi Arabia.
6. The Seventh Meeting for Saudi Association for Mathematical Sciences, April 7-8, 2004, Prince Sultan University, Riyadh, Saudi Arabia.
7. Order Statistical Data: Approximation , Bounds and Characterizations, International Conference, Izmir University of Economics, 15-18 June 2005, Izmir, Turkey.
8. The Third Saudi Science Conference " New Horizons in Science and Their Applications", 10-13 March,2007, Riyadh, Saudi Arabia.