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Lecturer of Mathematics, Department of Mathematics, Faculty of Science, Mansoura University from 20/7/2003 till Now.
Assistant Lecturer of Mathematics, Department of Mathematics, Faculty of Science, Mansoura University from 17/1/98 to 19/7/2003.
Demonstrator of Mathematics, Department of Mathematics, Faculty of Science, Mansoura University from 17/12/1994 to 16/1/1998.
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