Hitti, History of the Arabs, 10th edition 1970 , p | |
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El-Cheikh, Nadia Maria Byzantium Viewed by the Arabs 2004, Harvard University Press p |
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Kafih Jerusalem, 1984 , ch | |
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Denis Gril, Miracles, , Brill, 2007 | sources are not contemporaneous with the events they purport to relate and sometimes were written many centuries later |