Volume 30.1, Issue 59, October 1993, Pages 52-63
M.A. KOBEISY; Th. S. ABD EL-ALL
Volume 27.2, Issue 54, July 1992, Pages 64-76
M. M. SHETAEWI; H.A. DAGHASH; Th. S. ABD EL-ALL
Volume 18.1, Issue 35, January 1987, Pages 205-209
A.A. AMER; Th. S. ABD EL-ALL