Volume 16, Issue 2, September 2008, Pages 495-501
Youssef Gh.A.; G.B. El–Saadany; M.S. Abdel-Wahed; Y.E. Abdallah
Volume 14, Issue 1, March 2006, Pages 439-445
M.S.T Abbas; Salwa S.M. Abdel-Samad