Volume 18.1, Issue 35, January 1987, Pages 101-110
O.E. MOHAMED; A.N. ATTIA; S.A. AWADALLA; E.Y. ESMAIL; M.M. HADY
Volume 10.1, Issue 19, June 1982, Pages 51-57
O.E. MOHAMED; E.Y. ISMAIL; MONA H. FAHIM