Volume 19, Issue 1, April 2005, Pages 18-27
Sonia L. El Sharkawy; Marwa A. El Shaer; Manal A. Badawi; Mohamed H. kobeisy
Volume 3, Issue 1, April 2001, Pages 141-160
Sonia L. El Sharkawy; Hafiza A. sharaf; Nabila S. Hassan.
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