1-      1966. The British – Belgian Physiological Society Conference, Louvain, Belgium.

2-      1969. International Congress in Pharmacology, Basil, Switzerland.

3-      1975. World Veterinary Congress, Thessaloniki, Greece.

4-      1978. Universities Congress, Dubrovnik, Yugoslavia .

5-      1978. World Federation of the United Nation Association Conference, Geneva, Switzerland.

6-      1981. Third African Conference of the United Nation Associations, Khartoum , Sudan.

7-      1981. United Nations Conference on New and Renewable Sources of Energy, Nairobi, Kenya .

8-      1983. Second Congress of UASPHAR in Cairo, Egypt.

9-      1985. ( xxll) -22^nd World Veterinary Congress in Perth, Western Australia.

10-  1985. Congress of Arab Veterinary Associations in Cairo, Egypt.

11-  1991- 1993. Meetings of Presidents of Arab Universities in Qatar and Jordan and Meeting of Vice Chancellors of African Universities in Ghana (Accra).