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MALK ISMAIL IBRAHIM; Adel ELSAYED AHMED MOHAMED; ALSAGHER ALI; HASSAN MAHMOUD
Volume 60, Issue 141, April 2014, Pages 38-44
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Volume 53, Issue 114, July 2007, Pages 1-8
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Volume 39.2, Issue 78, July 1998, Pages 157-174
M.N. Abd-El-Salam; A.A. Ali; Ehsan A. Hassan
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