Setiawan, A. A., and D. G. Suharto. “Implementation of Environmentally Friendly Policie at Indonesian Crossing Ports: A Literature Study”. Jurnal Cahaya Mandalika ISSN 2721-4796 (online), Vol. 3, no. 3, May 2024, pp. 2031-8, doi:10.36312/jcm.v3i3.3033.