Hidayat, A., B. Robiani, T. Marwa, and S. Suhel. “Competitiveness, Market Structure, and Energy Policies: A Case Study of the World’s Largest Crude Palm Oil Exporter”. International Journal of Energy Economics and Policy, vol. 13, no. 3, May 2023, pp. 111-2, doi:10.32479/ijeep.14199.