Volume 33.2, Issue 66, July 1995, Pages 91-101
A.F. BASTAWROWS; M.M. ABDEL-HAFFEEZ; H.A. ABDEL-KADER; R.S. SEDDEK
Volume 33.1, Issue 65, April 1995, Pages 116-122
NAGAH M. SAAD; S.K. HEMAIDA