Usman, M., M. Komarudin, N. Nurhanurawati, E. Russel, A. Sidiq, W. Warsono, and F. A. Elfaki. “Dynamic Modeling and Analysis of Some Energy Companies of Indonesia Over the Year 2018 to 2022 By Using VAR(p)-CCC GARCH(r,s) Model: -”. International Journal of Energy Economics and Policy, vol. 13, no. 4, July 2023, pp. 542-54, doi:10.32479/ijeep.14364.