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Name : Ibrahim M. E. Abdelstar
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Address : Department of Mathematics, Faculty of Science, Al-Azhar University, Nasr City, P.O.Box: 11884, Cairo, Egypt\\ Quantitative methods unit, Faculty of Business & Economics Qassim University, P.O.Box: 6633, Qassim, Buridah 51452, Saudi Arabia. |
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Email : N/A
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