Shekari, Morteza Doosti Seyyed, and Babak Jamshidinavid. “Study of Commitment Items Quality Members Effect on Price Synchronism in Tehran Stock Exchange”. International Journal of Economics and Financial Issues, vol. 7, no. 2, May 2017, pp. 733-8, https://mail.econjournals.com/index.php/ijefi/article/view/4785.