Volume 37, Issue 2, December 2019, Pages 28-32
Walaa Saad; Ashraf Abd El-Tawab; Ashraf Nabih
Volume 33, Issue 2, December 2017, Pages 27-37
Ashraf A. Abd El- Tawab; Ashraf M. Nabih; Mohsen A. Agag; Marwah H. Abd Ali.
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