Forecasting the Exchange Rate of the IDR Against the USD Using the ARIMA and Exponential Smoothing Models. Jurnal Varian, [S. l.], v. 9, n. 1, p. 101–114, 2026. DOI: 10.30812/varian.v9i1.6144. Disponível em: https://journal.universitasbumigora.ac.id/Varian/article/view/6144. Acesso em: 3 may. 2026.