Habibah, U., R. R. Robby, and M. N. Qomaruddin. “Comparison of the Trend Moment and Naive Methods in Forecasting Gross Regional Domestic Product in Blitar Regency”. EIGEN MATHEMATICS JOURNAL, vol. 5, no. 1, June 2022, pp. 31-36, doi:10.29303/emj.v5i1.121.