Volume 55, Issue 122, July 2009, Pages 1-10
G.A. MEGAHED; D.R. DERAR; H.A. HUSSEIN; A.L.E. MOHMOUD
Volume 55, Issue 120, January 2009, Pages 1-15
GHADA A. ABOU EL-ELLA; H.A. HUSSEIN; D.R. DERAR
Volume 51, Issue 104, January 2005, Pages 1-17
D.R.I. DERAR; H.A. HUSSEIN; A.M. SALEH