Volume 55, Issue 121, April 2009, Pages 1-17
NAHED A. MAHMOUD; OMAYMA A. SHEMIES; JEHAN A. GAFER; HANAA A.M. GHONIEM
Volume 51, Issue 106, July 2005, Pages 1-10
AMAL M.A. RAOF; NAHED A. MAHMOUD; A.S. AHMED