Comparison of Nonparametric Regression Nadara - Watson Estimator Kernel Function And Local Polynomial Regression In Predicting USD Against IDR. sciencetech [Internet]. 2024 Jul. 22 [cited 2026 Sep. 30];2(2):10-6. Available from: https://bestjournal.untad.ac.id/index.php/sciencetech/article/view/17300