Volume 22, Issue 1, January 2018, Pages 199-206
Gamal Youssef Elsayed; Esam E. Bahgat; Tarek A Abulezz; Hossam F. Abd El Hameed
Volume 21, Issue 1, January 2017, Pages 105-112
Abd ellatif Arafa; Gamal Youssef Youssef; Ahmed Tharwat