Wasil, Mohammad, Jakfar, and Muhammad Iqbal Firdaus. “Green Logistics in Practice, A Qualitative Study of Port Sustainability in Eastern Indonesia”. Logistica : Journal of Logistic and Transportation 2, no. 4 (October 31, 2024): 225–235. Accessed November 7, 2025. https://journal.idscipub.com/index.php/logistica/article/view/687.