@article { author = {}, title = {Introduction of documents}, journal = {Social Security Journal}, volume = {7}, number = {4}, pages = {253-276}, year = {2006}, publisher = {Social Security Research Institute}, issn = {1563-0781}, eissn = {}, doi = {}, abstract = {}, keywords = {}, title_fa = {معرفی اسناد}, abstract_fa = {}, keywords_fa = {}, url = {https://qjo.ssor.ir/article_63089.html}, eprint = {https://qjo.ssor.ir/article_63089_faf9027d685528c3ba367efd031e293c.pdf} }