AMELIA, Dita; ZHAFIRA, Azizah Atsariyyah; GINZEL, Bryan Given Christiano; PUTRA, Fery Yulian; WIBAWA, Yoga Setya. Analyzing the Influence of Gross Domestic Product on the Human Development Index Worldwide in 2021 Using a Nonparametric Regression Approach Based on Penalized Spline Estimator. (IJCSAM) International Journal of Computing Science and Applied Mathematics, [S. l.], v. 11, n. 2, p. 68–75, 2025. DOI: 10.12962/j24775401.ijcsam.v11i2.8851. Disponível em: https://journal.its.ac.id/index.php/ijcsam/article/view/8851. Acesso em: 30 jan. 2026.