- E. Estaji, On the graph associated to a lattice, 3rd Algebraic Combinatorics Conference, February 24-25, 2011, Esfahan University, Iran
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- E. Estaji, Y. Alizadeh On the Wiener index of Sierpinski graphs, 46th Annual Iranian Mathematics Conference, August 25-28, 2015, Yazd University, Iran
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- E. Estaji, Y. Alizadeh d-self Center Graphs and Graph Operations, 46th Annual Iranian Mathematics Conference, August 25-28, 2015, Yazd University, Iran
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- E. Estaji, Y. Alizadeh, An algorithmic approach to distinguishing number problem, 8th Conference on Algebraic Combinatorics and Graph Theory, October 7-8, 2015, Qazvin, Iran
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- E. Estaji, Y. Alizadeh On the topological dimension of graphs, 8th Conference on Algebraic Combinatorics and Graph Theory, October 7-8, 2015, Qazvin, Iran
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- E. Estaji, Y. Alizadeh Some results on distinguishing number of graphs, 25th Iranian Algebra Seminar, July 19-20, 2016, Sabzevar, Iran
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- E. Estaji, Y. Alizadeh Graph orbits and complexity of topolgical indices, 25th Iranian Algebra Seminar, July 19-20, 2016, Sabzevar, Iran
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