Volume 25, Issue 1, January 2017, Pages 27-45
Amal S. A. F. Hafez; Ehab M. Hantash; Essam M. Hafez
Volume 20, Issue 2, July 2012, Pages 35-48
Arwa A. Abuelfadl; Ahmad A. El-Ebiary; Essam M. Hafez; Mahmoud E. Salama; Mohamed Z. Hussein
)