Volume 21.2, Issue 42, May 1989, Pages 84-92
M. YASSIEN; H. ABD EL-RAHMAN; A. IBRAHIM; M. MOUSA
Volume 10.2, Issue 20, January 1983, Pages 178-180
S. MOUSA; A. BAYOUMI; M. SHAHATA; A. IBRAHIM
Volume 10.1, Issue 19, June 1982, Pages 187-192
S. MOUSA; A. IBRAHIM; M. SHAHATA