Warsono, W., Russels, E., Wamiliana, W., Widiarti, W., & Usman, M. (2019). Vector Autoregressive with Exogenous Variable Model and its Application in Modeling and Forecasting Energy Data: Case Study of PTBA and HRUM Energy. International Journal of Energy Economics and Policy, 9(2), 390–398. Retrieved from https://www.econjournals.com/index.php/ijeep/article/view/7223