Damanik , Immanuel, Ida Bagus Putu Gunadya, and I Gusti Ngurah Apriadi Aviantara. 2022. “Application of Several Forecasting Method on Refined Sugar Production at PT. Perkebunan Nusantara X”. Jurnal BETA (Biosistem Dan Teknik Pertanian) 10 (1):21-33. https://doi.org/10.24843/JBETA.2022.v10.i01.p03.