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2. Sayigh, A.A.M., Solar Energy Availability Prediction from Climatological Data, 2nd Course on Solar Energy Conversion, International College on Applied Physics, Naples, Italy, 25th August, 4th September 1975.
3. Sayigh, A.A.M., The Energy Prospects in the Arab World, International Conference in Mechanical Engineering with main emphasis on Energy, March 1976. Unviersity of Engineering and Technology, Lahore, Pakistan.
4. Sabbagh, Sayigh, A.A.M. and El-Salam, Research into Solar Energy Utilization in Saudi Arabia, The Fourth International Conference, The Sun in the Service of Mankind, Paris, France, 2–6 July, 1973.
5. Solar Energy Thermal Processes;Duffie,1974