Bahtiar, Armin Lawi, Budi Nurwahyu, and Nirwan Ilyas. “Cost-Sensitive Ordinal Gini: Formulation, Structural Properties, and Empirical Evaluation”. Statistics, Optimization & Information Computing 16, no. 5 (September 19, 2026): 3977–4005. Accessed November 12, 2026. https://iapress.org/index.php/soic/article/view/4287.