Tri Andri Hutapea and Andre Yoel Siahaan 2023. Peramalan Curah Hujan Menggunakan Metode Holt-Winters Exponential Smoothing Di Kabupaten Padang Lawas Utara. Journal of Student Research. 1, 2 (Jan. 2023), 378–393. DOI:https://doi.org/10.55606/jsr.v1i2.1046.