Volume 24, Issue 2-B, December 2013, Pages 77-91
G.F. ATTIA; I.A. HASSAN; R. GHONEIM
Volume 24, Issue 1-B, June 2013, Pages 65-72
O. S. ALI; M.N. ISMAIL; A. BAKRY; I.A. HASSAN; NADIA A. SAAD; B. GIOVANNI