@article{article.272364,
      title   = {فضای کسب وکار},
      author  = {ولی اله سیف},
      journal = {تازه های اقتصاد},
      year    = {1390},
      number  = {132},
      pages  = {},
      url  = {http://ensani.ir/fa/article/272364}
}