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VOL. 39, Issue. 4

 

Abdalsamad A. A. Aldabaa , Asmaa Abdu Shata, and Mohamed Y. Draz

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Sameh G. M. Sharaf eldin, Hamid M. S. Ziena, Soad T. M. KHair and Mahmoud A. Rozan

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Soheir Fouad Nour, Ekram R Soliman, Samirah A Al-Humaidi , and Mamdouh A Abou-Rayan

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Tesby Mohamed Rashad Lotfy, Asteer Victor Abd Elnoor, Marwa Zaki Mahfouz, Asmaa Khaled Shafik

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