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This is to certify that your paper entitled «Predict consumer behavior in selecting mobile SIM using artificial neural networks (Case study: mobile phone subscribers in the city of Urmia)» was indexed with 7 pages, in the CIVILICA citation database, code COI:ICMNG01_199, after evaluation and approval of the referees of the "The first international management conference in the 21st century held in Tehran 2014.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.