Khan, A., M. Asif, and M. RamzanMehar. “Co-Integration and Granger Causality Test of Crude Oil Price, Exchange Rate, KIBOR and Consumer Price Index of Pakistan”. The International Journal of Humanities & Social Studies, vol. 3, no. 1, Jan. 2015, https://internationaljournalcorner.com/index.php/theijhss/article/view/131920.