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See on Wikipedia : https://ar.wikipedia.org/wiki/%D9%82%D8%AA%D8%A7%D9%84 %D8%A7%D9%84%D9%8A%D9%87%D9%88%D8%AF (%D8%B9%D9%84%D8%A7%D9%85%D8%A7%D8%AA %D8%A7%D9%84%D8%B3%D8%A7%D8%B9%D8%A9 %D8%A7%D9%84%D8%B5%D8%BA%D8%B1%D9%89).
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