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
Volume 21, Issue 2-A, December 2010, Pages 239-250
M. R. ZAHER; A. M. EL-AGRODY; H. M. HASSAN; A. A. FARRAG
Volume 20, Issue 1-A, June 2009, Pages 51-57
NAHED F. ABD EL-GHAFFAR