Volume 22, Issue 2-A, December 2011, Pages 141-152
MAHMOUD HASSAN MOUSTAFA; ABED ELHALEEM M. HESSEEN; MOUSTAFA K. HASSAN; EHAB M. ABED ALLAHA
Volume 22, Issue 2-A, December 2011, Pages 153-164
MAHMOUD H. MOUSTAFA; ABED ELHALEEM M. HESSEEN; MOUSTAFA K. HASSAN; EHAB M. ABED ALLAHA