1-    The Economic Effect of Water borne diseases as a consequence of Water Resource Development in The Third World, Rutgers University New Jersey USA 1994.

2-    International Conference for Irrigation and Drainage – Casablanka – Morocco 1987.

3-    Workshop on Evaluation of Irrigated Agricultural Schemes of East and South Africa – Nairobi 1988.

4-    Methods of Administering Irrigated Schemes in the third World – LAHOR Pakistan 1989.

5-    International Conference of the high technical Committee for Cotton Marketing – Manella – Phillipine 1995.

Internationalmeeting of cotton producers and Marketers, Liverpool – U.K 1995