Member of American Mathematical Society,
http://www.ams.org,
Member of European Mathematical Society,
http://www.emis.de
Member of Egyptian Mathematical Society,
http://msrc.etms-web.org
Full Member of Ibn Al-Haitham Center (Amman Jordan),
http:// ww.ibnalhaitham.org,
Member of International Society of Difference Equations,
http://web.umr.edu/~isde/
Member of African Mathematical Union, AMU,
http://www.math.buffalo.edu/mad/PEEPS2/sakir_samir.html
Reviewer of Zentralblatt MATH. (European Math. Soc., No. 10325),
http://www.emis.de
Reviewer of Mathematical Review (Amer. Math. Soc., No. 3733
http://www.ams.org
Editor of Journal of Mathematics and Statistics,
http://www.ansijournals.com/jms2
Assistant Editor on International Journal of Applied Mathematics
& Statistics (IJAMAS)
http://www.geocities.com/ceser_info/eb-ijams.html .
Editor on Journal of Contemporary Mathematics.
Referring to:
1. Journal of London Mathematical Society,
2. Journal of Mathematical Analysis and Applications,
3. Journal of Diff. Eqns. Appl.,
4. Nonlinear Analysis, Ther. Meth &Appl.,
5. Journal of Computational and Applied Mathematics,
6. ANZIAM Journal,
7. Fasculi Math.,
8. Bull Korean Math. Soc.,
9. E-Notes of Applied Mathematics,
10. Indian J. Pure and Appl. Mathematics,
11. Advances of Difference equations,
12. European Math. J.
13. J. Appl. Math. Computing,
