[1] . https://www.doingbusiness.org/en/rankings
[2] . https://www.tasnimnews.com/fa/news/1398/03/12/2024407/
[3] . https://www.alef.ir/news/3970907131.html
[4] . https://donya-e-eqtesad.com/%D8%A8%D8%AE%D8%B4-%D8%A8%D8%A7%D8%B4%DA%AF%D8%A7%D9%87-%D8%A7%D9%82%D8%AA%D8%B5%D8%A7%D8%AF%D8%AF%D8%A7%D9%86%D8%A7%D9%86-52/3540617-%D9%85%D9%88%D8%A7%D9%86%D8%B9-%D9%88%D8%B1%D9%88%D8%AF-
[5] . file:///C:/Users/PoYe92/Downloads/sustainability-11-01015%20(2).pdf
[6] . http://ayaronline.ir/1397/07/283605.html
[7] . https://www.tasnimnews.com/fa/news/1398/04/10/2043991/
[8] . https://www.yjc.ir/fa/news/6984497
[9] . https://www.tasnimnews.com/fa/news/1398/05/17/2071734/