Volume 23, Issue 1-A, June 2012, Pages 91-107
ALI M. HASSAN; E. A. ABDEL-AAL; MOUSTAFA F. BAKR; B. KH. DAMRANY
Volume 20, Issue 1-A, June 2009, Pages 61-70
ABD ALLAH A. MOHAMED; WADIE S. AL–ARIQUI; MOUSTAFA F. BAKR