Lawali, Lukman, Mustapha Maccido, and Mohammed Attahiru. “Relationship Between Volatility in Domestic Oil Prices, International Oil Prices, and Exchange Rates: Co-Integration and Granger Causality Tests”. International Journal of Accounting Research 10, no. 2 (September 20, 2025): 91–95. Accessed January 31, 2026. https://j.arabianjbmr.com/index.php/ijar/article/view/1318.