Volume 23, Issue 2-A, December 2012, Pages 113-131
HAMDY KH. THABET; AHMED H. HALAWA; MOHAMED A. ELNASSAG; AHMED A. HASSAN
Volume 22, Issue 2-A, December 2011, Pages 165-180
MAHMOUD M. ABDELALL; SHABAN I. MOHAMED; AHMED H. HALAWA; AHMED A. HASSAN; MOHAMED A. ELNASSAG