Volume 21.1, Issue 41, January 1989, Pages 102-107
H.B. HASSAN; S. DEEB; LM. ISMAIL; M.B. EL-BEGAWY; A. AGAG
Volume 20.2, Issue 40, September 1988, Pages 31-36
M.B. EL-BEGAWI; RAWHIA OMRAN; S. DEEB; A. AGAG; M.A. HAFEZ