Volume 20, Issue 4, December 2019, Pages 21-28
Walaa Abu El-Ela; Kamel Abou.Elazm; Sanaa Awad
Volume 18, Issue 1, June 2017, Pages 105-115
Reham A Elbhnsawy; K I Abu El Azm; Sanaa S Awad; A H Eladl