Environmental Policy Implementation and Operational Sustainability in Southeast Asian Shipping: A Mixed-Methods Analysis of Governance Frameworks, Officer Perspectives, and Decarbonization Barriers. JIRAN [Internet]. 2026 Mar. 7 [cited 2026 Apr. 3];7(2):178-8. Available from: https://jiran.unaim-wamena.ac.id/jiran/article/view/30