TY  - JOUR
AU  - Ghaffari, Saeed
AU  - najafi, mahtab
TI  - Investigating the using rate of Persian printed Journals by post graduate students of Islamic Azad University of Qazvin
JO  - Journal of Knowledge Studies
VL  - 6
IS  - 21
SP  - 77
EP  - 92
PY  - 2013
DO  - 
ER  -