Editor Member of Applied Mathematics, http://www.sapub.org/journal/editorialdetails.aspx?JournalID=1024PersonID=13533 

Referee in:

(1) Bulletin of the Iranian Mathematical Society, ISI,

(2) Applied Mathematics Letters, ISI,

(3) Utilitas Mathematica, ISI,

(4) Discussions Mathematicae Graph Theory,

(5) Journal of Hayperstructures.