Volume 6, Issue 1, January 2013, Pages 1-12
Gamal Saleh; Mostafa El-Sayed; George A. Nashed; Magdy Gad; Mohamed S. Abdelbary
Volume 5, Issue 3, October 2012, Pages 667-669
Gamal Saleh; Mostafa El-Sayed; Hussein Al-Gohry