E. J. BRILL LEIDEN. NEW YORK. KOBENHAVN. KOLN

University of Nairobi- kenya

U. S DEPARTMENT OF COMMERCE OFFICE OF TECHNICAL SERVICES

Faculty of Sharia and Islamic Studies, King Abdulaziz University, Mecca Al-Mokarrama

Humsafar Magazin

International Monetary Fund Washington D.C.

THE UNIVERSITY OF LEEDS, DEPARTMENT OF POLITICS

Islamic Foundation for Science, Technology and Development Organisation of Islamic Conference

University of Chicagu U. S. A.