P. Matagiwa, L. . Agusinta, and J. . Simarmata, “The Effect of the Green Shipping Campaign and Greenhouse Gas Emission Reduction Policy on Electric Vessel Procurement Mediated by Shipowner Perceptions: A Case Study at PT Pertamina Trans Kontinental (2025)”, DIJEMSS, vol. 7, no. 1, pp. 69–83, Oct. 2025.