Volume 21, Issue 2-A, December 2010, Pages 125-144
IBRAHEEM O. ALI; ABUDELRHMAN F. MOHMED; MOHMED S. THABET
Volume 21, Issue 2-A, December 2010, Pages 145-158
M. H. HELAL; SH. I. MOHAMED; Y. A. MOHAMED; A. A. ALI; Y. A. AMMAR