“Effectiveness of Single and Double Exponential Smoothing: SES, ARRSES and Holt’s Linear for Time Series Data Prediction With Trend and Non-Seasonal Characteristic (Covid-19 Vaccinate Case): Efektivitas Metode Exponential Smoothing Untuk Prediksi Data Runtun Waktu Pola Tren Dan Non-Musiman (Studi Kasus Cakupan Vaksinasi Covid-19)”. 2023. Jurnal Matematika, Statistika Dan Komputasi 20 (1): 52-64. https://doi.org/10.20956/j.v20i1.27193.