L. O. Saidi, H. Aedy, F. Saranani, R. Rosnawintang, P. Adam, and L. O. A. Sani, “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”, IJEEP, vol. 10, no. 1, pp. 104–108, Nov. 2019.