Volume 23, Issue 1-A, June 2012, Pages 75-90
ELSAYED M. ELNAGGAR; HESHAM S. NASSAR; MOHAMED A. MIGAHED; GAMAL M. ELKADY; HAZEM ELSHERIF; AMINA M. SALEH
Volume 22, Issue 2-A, December 2011, Pages 205-219
ELSAYED M. ELNAGGAR; HAZEM ELSHERIF; MOHAMED A. MIGAHED; GAMAL M. ELKADY