Volume 32.1, Issue 63, October 1994, Pages 82-94
M.N. EL-GHAZALI; S.I. EL-SYIAD; Sh. M. FATHI
Volume 28.1, Issue 55, October 1992, Pages 180-188
SH.M. FATHI; M.R.A. RASHWAN; S.I. EL-SYIAD