Volume 57, Issue 129, April 2011, Pages 1-20
NESMA I.S. YASEN; S.F.A. ABD EL AAL; M.A.H. MANSOUR; I.H. AMER
Volume 55, Issue 123, October 2009, Pages 1-16
S.F.A. ABD EL AAL; M.A-H.B. ATTA
Volume 54, Issue 116, January 2008, Pages 90-105
S.F.A. ABD EL AAL