Volume 20, Issue 2, September 2016, Pages 96-109
Nourhan Ghoneim; El-Sayed Hegazy; Mohamed Kotb; Adil Tawfiq
Volume 16, Issue 2, September 2012, Pages 68-79
El-Sayed Hussein Hegazy; Sherif Farouk Badran; Samy Adly Youssef