Dewa, Adenanthera L, Nugroho SBM, Mudjahirin Thohir, and Indah Susilowati. “Analysis of Seaports Efficiency in Supporting Inter-Island Transportation”. Economic Journal of Emerging Markets 10, no. 1 (March 8, 2018): 53–60. Accessed May 5, 2024. https://jurnal.uii.ac.id/JEP/article/view/9441.