Olo Angelia Simarmata, Bunga. “Cost Benefit Evaluation and Development Planning For Potential Jetty Facilities in Coal Mining Operation”. Journal Research of Social Science, Economics, and Management 5, no. 6 (January 26, 2026): 9966–9980. Accessed January 26, 2026. https://jrssem.publikasiindonesia.id/index.php/jrssem/article/view/1320.