Volume 22.2, Issue 44, January 1990, Pages 95-100
AHMED A-H. AHMED
Volume 22.1, Issue 43, September 1989, Pages 76-80
AHMED A-H. AHMED
Volume 20.2, Issue 40, September 1988, Pages 98-102
AHMED A-H. AHMED; T.A. EL-BASSIONY; MOUSTAFA K. MOUSTA
Volume 20.2, Issue 40, September 1988, Pages 103-108
AHMED A-H. AHMED; H.A. ABDEL-RAHMAN; M.K. MOUSTAFA
Volume 19.2, Issue 38, January 1988, Pages 72-78
H.A . ABD EL-RAHMAN; AHMED A-H. AHMED
Volume 19.2, Issue 38, January 1988, Pages 85-89
AHMED A-H. AHMED; M.K. MOUSTAFA; NAGAH M. SAAD; S.H. AHMED