Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Pages 39-60
A. M. EL-KERSH
Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Pages 221-232
A. M. EL-KERSH; S. A. ABOU-EL-SEOUD