N. Ayunda, L. Ningsih, Sujarwo, and A. Novitasari, “Pengujian Model Multiplicative Holt Winter’s Exponential Smoothing dalam Peramalan Data Time-Series Terdampak Covid-19”, teknol. j. ilm. sist. inf., vol. 12, no. 1, pp. 41–50, Oct. 2022.