A. T. Ampa, L. Laome, M. Ridwan, B. Baharuddin, and M. Makkulau, “MODELING GENDER DEVELOPMENT INDEX IN SOUTHEAST SULAWESI PROVINCE USING SEMIPARAMETRIC KERNEL REGRESSION”, BAREKENG: J. Math. & App., vol. 19, no. 3, pp. 1525-1536, Jul. 2025.