El-Borai, Mahmoud Mohammed, Professor of Mathematics Alexandria University Faculty of Science Department of Mathematics and Computer Science (Egypt)
El-Nadi, Khairia El-Said, Professor of Mathematics Alexandria University Faculty of Science Department of Mathematics and Computer Science (Egypt)
El-Sayed, S. M., Faculty of science, Aswan university (Egypt)
El-Shafei, M. E., Faculty of science, Mansoura University (Egypt)
El-Sharkasy, M. M., Tanta University, faculty of science, Mathematics department, Tanta (Egypt)
El-Zahaby, S. A.
El-Zahaby, S. A., Al Azhar University Nasr City, Cairo (Egypt)
El-Zahaby, S.A., Al Azhar University Nasr City, Cairo (Egypt)
El-Zoulati, Ibtissam Mohamed, Al Azhar University Nasr City, Cairo (Egypt)
Elboree, Mohammed K., Faculty of Science, South Valley University, Qena (Egypt)
Elmuiz, Alshaikh Hamed, School of Management, Ahfad University for Women, Omdurman (Sudan)
Elrifai, E. A., Princess Nourah Bint Abdul Rahman University, Kingdom of Saudi Arabia (Saudi Arabia)
Elshokry, Ayoub, Faculty of Education, University of Khartoum, Omdurman, Sudan, P.O.Box 321 (Sudan)
Elzaki, Tarig M, University of Jeddah, Kingdom of Saudi Arabia. (Saudi Arabia)
Este, Willian
Esther, Kawira, Chuka University, P.O. Box 109-60400 (Kenya)

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