Winiastuty, N.D. et al. 2026. Efficiency Analysis of Public Service Obligation (PSO) Sea Transportation Routes in Indonesia: A Case Study of PT Pelni (Persero). Dinasti International Journal of Economics, Finance & Accounting. 7, 3 (Aug. 2026), 2516–2529. DOI:https://doi.org/10.38035/dijefa.v7i3.7116.