Chen, Jeng-Chung Victor, Yolanda Gabriela Prince, and Quang An Ha. “The Lead Lag Relationship Between Spot and Futures Markets in The Energy Sector”. International Journal of Energy Economics and Policy 7, no. 4 (September 30, 2017): 23–30. Accessed November 23, 2024. https://econjournals.com./index.php/ijeep/article/view/5109.