Ruliana, Rahmat Hidayat, Hardianti Hafid, and Sudarmin. 2025. “Nonparametric Model For Poverty Data: The Effect of Internal Factors Using Multi-Predictor Spline Regression in Indonesia”. Jurnal MSA ( Matematika Dan Statistika Serta Aplikasinya) 13 (2):98-106. https://doi.org/10.24252/msa.v13i2.60319.