Nduka-Obi , Charity Ijeoma, and Isaac Chibueze Akangbou. “ANALYSIS OF CRUDE OIL PRICE VOLATILITY IN NIGERIA: A GARCH MODEL APPROACH”. Contemporary Journal of Statistics and Applied Mathematics 13, no. 1 (May 19, 2025): 23–55. Accessed August 23, 2025. https://aydenjournals.com/index.php/CJSAM/article/view/1086.