Tehranchian, Amir Mansour, and Mohammad Abdi Seyyedkolaee. 2017. “The Impact of Oil Price Volatility on the Economic Growth in Iran: An Application of a Threshold Regression Model”. International Journal of Energy Economics and Policy 7 (4):165-71. https://mail.econjournals.com/index.php/ijeep/article/view/4945.