Volume 38.1, Issue 75, October 1997, Pages 142-168
G.A. MEGAHED; M.M. ANWAR
Volume 37.2, Issue 74, July 1997, Pages 62-77
M.M. ANWAR; G.A. MEGAHED
Volume 31.1, Issue 61, April 1994, Pages 345-355
EMTETHAL M. MOSTAFA; IBTISAM M. ELMILIGYDD; M.M. ANWAR