Volume 20.1, Issue 39, May 1988, Pages 34-39
R.H. YOUSSEF; Y.L. AWAD; A.A. ZAKI; LAILA H. BEDAIR
Volume 9, Issue 17.18, January 1982, Pages 161-164
TH. A. IBRAHEEM; F.E. SHAABAN; S. EL-AMROUSI; Y.L. AWAD; A.A. SHAABAN
Volume 6, Issue 11.12, January 1979, Pages 47-59
Y.L. AWAD; M.T. FOUAD; N. GAZIA; M.A. MOUSTAFA