Volume 20, Issue 1-A, June 2009, Pages 165-173
ZEINAB A. EL-SHAFIE; AHMED A. SHABANA
Volume 19, Issue 1-A, June 2008, Pages 41-48
ADEL S. ORABI; N. B. EL-ASSY; ABD EL-GWAD M. RADI; N. S. ABDEL-GHANY; SAWSSAN M. ABU EL-HASSAN