Subject Areas : Journal of Knowledge Studies

hojat allah hasan larijani ¹ , mosa nori asl ²

1 - Faculty member of Islamic azad university,north tehran Branch;
2 - MLIS in library and information science Iran , Tehran University of Medcal science;

Received: 2016-02-28 Accepted : 2016-02-28 Published : 2016-02-28

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