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Browsing by Author "Ashour,%20Ameen%20A.%20%5B%D8%A7%D9%85%D9%8A%D9%86%20%D8%B9%D8%A8%D8%AF%20%D8%A7%D9%84%D8%A8%D8%A7%D9%82%D9%8A%20%D8%B9%D8%A7%D8%B4%D9%88%D8%B1%5D"