Volume 38, Issue 1, March 2013, Pages 1-13
A. Helal; H. El Dessouki; A. Hatata; Magdi Mohamed Ali El-Saadawi; Mohamed Abd El-Moneim Mohamed Tantawy
Volume 36, Issue 1, March 2011, Pages 25-31
Ebrahim A. Badran; Elsaeed Abdallah; Kamal Shebl