Ojirobe, Yunusa Adavi, Abdulsalam Hussein Ahmad, and David, Ikwuoche John. “Modelling and Forecasting Volatility of Crude Oil Returns in Nigeria Based on Six Error Innovations”. Journal of Statistical Modeling & Analytics (JOSMA) 3, no. 1 (June 29, 2021). Accessed December 24, 2024. http://mjs.um.edu.my/index.php/JOSMA/article/view/30631.