SANTI, V. M.; NINGSIH, N. R. .; LADAYYA, F. . ANALYZING OPEN UNEMPLOYMENT RATE IN JAVA USING PENALIZED SPLINE NONPARAMETRIC REGRESSION. International Journal of Applied Science and Sustainable Development (IJASSD), [S. l.], v. 4, n. 2, p. 70–77, 2022. Disponível em: https://e-journal.unmas.ac.id/index.php/IJASSD/article/view/4837. Acesso em: 26 apr. 2025.