Santi, V. M., Ningsih, N. R. ., & Ladayya, F. . (2022). ANALYZING OPEN UNEMPLOYMENT RATE IN JAVA USING PENALIZED SPLINE NONPARAMETRIC REGRESSION. International Journal of Applied Science and Sustainable Development (IJASSD), 4(2), 70–77. Retrieved from https://e-journal.unmas.ac.id/index.php/IJASSD/article/view/4837