Volume 57, Issue 131, October 2011, Pages 1-17
I.A. EL-KEWAIEY; OMAIMA I. ALI; OMAIMA A. SALEH
Volume 54, Issue 119, October 2008, Pages 1-11
AMANI L.F. AHMED; K.M. EL-KHAWAS
Volume 54, Issue 117, April 2008, Pages 1-12
ZIENAB I. SOLIMAN; AMANY M. SHALABY