Volume 38, Issue 4, December 2013, Pages 25-38
Elsayed A. M. Elshafei; E. A. Elnegiry; M. M. Awad; Moataz M.A. Elsayed
Volume 36, Issue 4, December 2011, Pages 30-38
M. Bassiouny; A. S. Abddullah
Volume 28, Issue 2, June 2003, Pages 111-123
M. Khalil Bassiouny
Volume 23, Issue 3, September 1998, Pages 17-24
Ahmed Nafey