Saidi, La Ode, Hasan Aedy, Fajar Saranani, Rosnawintang Rosnawintang, Pasrun Adam, and La Ode Arsad Sani. 2019. “Crude Oil Price and Exchange Rate: An Analysis of the Asymmetric Effect and Volatility Using the Non Linear Autoregressive Distributed Lag and General Autoregressive Conditional Heterochedasticity in Mean Models”. International Journal of Energy Economics and Policy 10 (1):104-8. https://mail.econjournals.com/index.php/ijeep/article/view/8362.