Volume 20, Issue 2, March 2010, Pages 1-6
Wafaa A. Osman; Azza S. A. Goda; Mona A. Mahmoud; T. R. Abou EL Naga
Volume 17, Issue 1, March 2007, Pages 29-34
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Volume 17, Issue 1, March 2007, Pages 35-38
Wafaa A. Osman; A. L. El-Naggar; Azza S. A. Gooda; Mona A. Mahmoud