Volume 22, Issue 2-A, December 2011, Pages 37-44
Ali M. HASSAN; SOHAIR A. ELREEFY; AHMED R. ELSALAMOUNY
Volume 21, Issue 2-A, December 2010, Pages 295-308
MAHMOUD HASSAN MOUSTAFA
Volume 17, Issue 1-A, June 2006, Pages 53-63
WAGIHA H. MAHMOUD; MOHAMED M. ABO ALY; MOHAMED S. HAMZA