Volume 30.2, Issue 60, January 1994, Pages 124-138
F.A. ABDEL-SALAM; A.A. GALAL; M.K. ALI
Volume 29.2, Issue 58, July 1993, Pages 108-114
A.M. MANDOUR; A.A. GALAL; G.H. ABED
Volume 29.2, Issue 58, July 1993, Pages 115-122
G.H. ABED; A.A. GALAL
Volume 29.1, Issue 57, April 1993, Pages 151-163
F.A. ABDEL-SALAM; H.S. ALI; A.A. GALAL