Kardoyo, Hadi, and Mudrajat Kuncoro. “Analisis Kurs Valas Dengan Pendekatan Box-Jenkins: Studi Empiris Rp/Us$ Dan Rp/Yen, 1983.2 – 2000.3”. Economic Journal of Emerging Markets 7, no. 1 (July 28, 2009). Accessed April 19, 2024. https://journal.uii.ac.id/JEP/article/view/654.