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First Author:
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| Sami Saafi |
| EAS – Faculty of Economic Sciences and Management of Mahdia, University of Monastir |
| samisaafi@yahoo.fr |
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| Mahdia, 5100, Tunisia |
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| 0021696545491(Phone) |
| 0021696545491(Fax) |
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Second Author:
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| Meriem Haj mohamed |
| EAS, FSEG Mahdia, University of Monastir Tunisia |
| meriem.hjmed@yahoo.fr |
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Third Author:
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| Abdeljelil Farhat |
| EAS, FSEG Mahdia, University of Monastir Tunisia |
| abdeljelil.farhat@fsegma.rnu.tn |
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