Volume 36, Issue 1, January 2013, Pages 69-77
E Ghorab; Y. Esam Helal; S Mahgoub; M.F Sobeih; A Shalash
Volume 35, Issue 2, April 2012, Pages 129-137
Hitham Abdel Samad; Y. Esam Helal; S.A Ibrahim; M.F Sobeih
Volume 35, Issue 2, April 2012, Pages 165-176
A. M. Amin,; Y. Esam Helal
Volume 34, Issue 2, April 2011, Pages 167-179
Fahmy S. Abdel-Haleem; Y. Esam Helal; A. El-Belasy; S.A. Ibrahim; M.F. Sobeih