Volume 32.1, Issue 63, October 1994, Pages 82-94
M.N. EL-GHAZALI; S.I. EL-SYIAD; Sh. M. FATHI
Volume 31.2, Issue 62, July 1994, Pages 48-62
M.A. ATTIA; A.T.G. AHMED; SOAD S. ALI*; SADIA R