¨ Reviewer of the American Mathematical Reviews

¨ Editorial member of   International Journal of Group Theory

¨ Editorial member of   Transactions on Combinatorics

¨ Editorial member of   Iranian Journal of Mathematical Chemistry

¨ Referee for

* Journal of Applied Mathematics & Computing. (Korean Society for Computational & Applied Mathematics and the Korean SIGCAM)

* Applied Mathematics Letters (Elsevier Inc.)

* Utilitas Mathematica (Univ. Natal Dept. Math. Appl. Math. Durban, South Africa)

* Ars Combinatoria (Charles Babbage Res. Centre, Canada)

* Bulletin of the Iranian Mathematical Society

* Current Nano Science (Bentham Science Publishing)

* Discrete Applied Mathematics (Elsevier Inc.)

* Discrete Mathematics (Elsevier Inc.)

* Discussiones Mathematicae Graph Theory (Technical University Press)

* European Journal of Combinatorics (Elsevier Inc.)

* Graphs and Combinatorics (Springer)

* Iranian Journal of Mathematical Chemistry (University of Kashan)

* International Journal of Nanoscience and Nanotechnology (International Research Publishing House)

* International Journal of Combinatorics (Hindawi Publishing Corporation)

* Journal Advanced Research in Pure Mathematics (Institute of Advanced Scientific Research, Inc.)

* Journal of Nano Material (Hindawi Publishing Corporation)

* MATCH Communications in Mathematical and in Computer Chemistry (University of Kragujevac)

* Mathematics Scientific Journal (Islamic Azad University of Arak)

* Journal of Sciences, Islamic Republic of Iran (University of Tehran)

* Iranian Journal of Science and Technology (University of Shiraz)

* Journal of Optoelectronics and Advanced Materials (INOE Publishing House)

¨ Collaboration in Conference Organizing:

* Member of the Scientific and Administrative Committees of the 11th Algebra Seminar IRAN. (Isfahan 1999-2000)

* Member of the Scientific Committee of the 3th International ISC Conference on Information Security and Cryptology (Isfahan 2004-2005)

* Member of the Scientific and Administrative Committees of the 5th Seminar on Commutative Algebra and Related Topics IRAN. (Isfahan 2008)

* Member of the Scientific and Administrative Committees of the Workshop on the Recent Progress on the Ring and Module Theory IRAN. (Isfahan 2006)

* Member of the Scientific and Administrative Committees of the International Workshop on the Metric Graph Theory and Application IRAN. (Isfahan 2008)

* Member of the Scientific Committee of The 1th International Conference on Mathematical Chemistry (Tehran 2008)

* Member of the Scientific Committee of The 2th International Conference on Mathematical Chemistry (Kashan 2009)

* Member of the Scientific Committee of The 3th International Conference on Mathematical Chemistry (Tehran 2010)

* Member of the Scientific Committee of The Fourth International Conference on Group Theory of Iran (Isfahan, 2012)

* Member of the Scientific Committee of The First Iranian Conference on Chemical Graph Theory (Theran, 2010)