المؤلفون
1 Assistant Lecturer of Statistics Faculty of commerce, Al-Azhar University Girl's Branch, Cairo, Egypt.
2 Professor of StatisticsFaculty of Economics and Political Science, Cairo University, Egypt. Research Professor, Social Research Center, AUC
3 Professor of Statistics and Dean of Faculty of commerce, Al-Azhar University Girl's Branch, Cairo, Egypt.
4 Assistant Professor of Statistics Faculty of commerce, Al-Azhar University Girl's Branch, Cairo, Egypt.
المستخلص
الكلمات الرئيسية