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- https://mu.menofia.edu.eg/hec/View/56589/ar
- https://www.helwan.edu.eg/Arabic/?page_id=1086
- https://www.lafamille-lb.org/article.php?id=4288&cid=242&catidval=229
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- https://srd2.qu.edu.sa/Public/showPublications.aspx?DepartmentID=126&Lang=ar-SA
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