Volume 24.2, Issue 48, January 1991, Pages 125-130
NAWAL GOBRIAL; LAILA S. AHMED; SEHAM M. ALI; A.H. ELYAS; S.M. NASHED; A.A. AMER
Volume 24.1, Issue 47, October 1990, Pages 116-123
SEHAM M. ALI; A.H. ELYAS; NAWAL GH. KHALIL; A.A. AAMER; M. ATTIA
Volume 22.2, Issue 44, January 1990, Pages 51-61
M.B. Morcos; S. Sh.E. SOLIMAN; A.H. ELYAS; SEHAM M. ALI; A.A. AMER