M. A. Pastrana, K. Lagdami, and A. Baylon, “Policy Coherence and Governance Gaps in Maritime Decarbonization: Implications for the Philippine Domestic Ferry Sector”, IJSAIR, vol. 2, no. 3, pp. 1456–1465, Aug. 2026, doi: 10.65339/ijsair.V2.I3.859.