Umasangadji, Fahmi, Ariyono Setiawan, Bambang Widjanarko Otok, and Choo Wou Onn. “Ship Age Clusters Do Not Predict Accident Severity: A Hybrid Multivariate Clustering–Logistic Model under Spatial Interaction Effects in Global Maritime”. Greenation International Journal of Law and Social Sciences 4, no. 5 (November 9, 2026): 1940–1956. Accessed November 9, 2026. https://research.e-greenation.org/GIJLSS/article/view/993.