Volume 42.1, Issue 83, October 1999, Pages 337-352
S.A. Atallah; A.H. Abdel-Gawad; Samira A. Emara
Volume 41.2, Issue 82, July 1999, Pages 217-226
Manal G. Fadlallah; Samira A. Emara; A.H. Aly; M.N.S. Sakran