Cahyandari, Rini, and Rima Erviana. 2015. “Peramalan Kurs Jual Uang Kertas Mata Uang Singapore Dollar (SGD) Terhadap Rupiah Menggunakan Model ARFIMA (Autoregressive Fractionally Integrated Moving Average)”. KUBIK: Jurnal Publikasi Ilmiah Matematika 1 (1):49-58. https://doi.org/10.15575/kubik.v1i1.323.