Suryono, M.S. and Oetama, R. 2019. Peramalan terhadap Forex dengan Metode ARIMA Studi Kasus GBP/USD. Ultimatics : Jurnal Teknik Informatika. 11, 1 (Aug. 2019), 6-10. DOI:https://doi.org/https://doi.org/10.31937/ti.v11i1.1238.