Volume 61, Issue 144, January 2015, Pages 113-122
A.A. KHALAF; BR. ABDEL–HALIM; WALAA A. MOSELHY; MARWA A. IBRAHIM
Volume 60, Issue 140, January 2014, Pages 139-144
NERMEEN A. HELMY; BR. ABD EL-HALIM
Volume 58, Issue 134, July 2012, Pages 1-10
A.A. KHALAF; BR. ABDEL–HALIM