نوع المستند : المقالة الأصلية
المؤلفون
1 Statistics Dept, Faculty of Commerce, Al-Azhar University, Girls’ Branch, Cairo, Egypt
2 Statistics Dept, Faculty of Economics and Political Science, Cairo University, Giza, Egypt Social Research Centre American University, New Cairo, Egypt
3 Statistics Dept., Faculty of Commerce, Al-Azhar University, Girls Branch, Cairo, Egypt.
المستخلص
الكلمات الرئيسية