Volume 14, Issue 1, March 2006, Pages 475-490
A.E.A Mahgoob; M. E . Tharwat; Samia . O. Kilany; T.S . Hafez
Volume 14, Issue 1, March 2006, Pages 509-529
A.E.A Mahgoob; A.I. Badawy; I.M Badoor