TY - JOUR ID - 4863 TI - Content JO - Iranian Journal of Economic Studies JA - IJES LA - en SN - 2322-1402 Y1 - 2017 PY - 2017 VL - 6 IS - 2 SP - 137 EP - 141 DO - 10.22099/ijes.2017.4863 N2 - UR - https://ijes.shirazu.ac.ir/article_4863.html L1 - https://ijes.shirazu.ac.ir/article_4863_011edca179fbb915120c29508a3f7ac6.pdf ER -