P. S. Yulia, A. N. Sidqi, S. Irham, M. Maulani, and P. Wijayanti, “Comparative Study of Economic Evaluation of PSC Cost Recovery and PSC Gross Split Scheme for Expiry Block, Case Study Field A in Sumatera”, J. earth energy eng., vol. 12, no. 2, pp. 85–95, Oct. 2023.