Volume 60, Issue 142, July 2014, Pages 75-82
A.M. HEGAZY; F.M. ABDALLAH; L.K. ABD-EL SAMIE; A.A. NAZIM
Volume 17.1, Issue 33, May 1986, Pages 196-203
A.M. HEGAZY; M.S. NADA; H. EL GAWADY