Arnita, A. 2020. Comparison of Single Exponential Smoothing, Naive Model, and SARIMA Methods for Forecasting Rainfall in Medan. Jurnal Matematika, Statistika dan Komputasi. 17, 1 (Aug. 2020), 117-128. DOI:https://doi.org/10.20956/jmsk.v17i1.10236.