Priyanto, S., E. . Churniawan, D. . Setyo Oktaria, and E. . Setyo Darmawan. “Forecasting the Number of Jogja-Solo KRL Passengers With the Gray Method (1,1), Moving Average and Exponential Smoothing”. Journal of World Science, vol. 2, no. 1, Jan. 2023, pp. 138-49, doi:10.58344/jws.v2i1.130.