المؤتمرات والندوات
- 31st international congress of pure and applied chemistry - دولة بلغاريا ، sofia - sofia ، من13/7/1987 إلى 18/8/1987.
the second international conference on chemistry and its role in development - دولة مصر ، mansoura - mansoura ، من27/9/1988 إلى 29/9/1988.
the 4th international conference on chemistry and its role in development - دولة مصر ، mansoura - mansoura ، من8/4/1997 إلى 10/4/1997.
the 5th international conference on chemistry and its role in development - دولة مصر ، mansoura - mansoura ، من19/4/1999 إلى 22/4/1999.
the 6th international conference on chemistry and its role in development - دولة مصر ، mansoura - mansoura ، من16/4/2001 إلى 19/4/2001.
the 7th international conference on chemistry and its role in development - دولة مصر ، sharm el-sheikh - sharm el-sheikh ، من14/4/2003 إلى 17/4/2003.