Tri Andri Hutapea, and Andre Yoel Siahaan. “Peramalan Curah Hujan Menggunakan Metode Holt-Winters Exponential Smoothing Di Kabupaten Padang Lawas Utara”. Journal of Student Research, vol. 1, no. 2, Jan. 2023, pp. 378-93, doi:10.55606/jsr.v1i2.1046.