Volume 20.2, Issue 40, September 1988, Pages 148-157
M.S. EL-BELELY; M.M. ABOU-AHMED; N.A. HEMEIDA; Y.R.M. EL-BAGHDADY
Volume 19.2, Issue 38, January 1988, Pages 156-164
S.T. ISMAIL; M.S. EL-BELELY; M.M. ABOU-AHMED; Y.R.M. EL-BAGHDADY; N.A. HEMEIDA
Volume 14.2, Issue 28, May 1985, Pages 203-210
N.A. HEMEIDA
Volume 12.1, Issue 23, May 1984, Pages 202-209
M.S.S. ABDOU; A.A. EL—MENOUFY; A.B.A. BADAWY; N.A. HEMEIDA