Luxviantono, Elvina, et al. “Analisis Hubungan IHK (Indeks Harga Konsumen) Dan Kurs Beli IDR-USD Melalui Pendekatan Copula”. D’Cartesian, vol. 7, no. 2, July 2018, pp. 52-58, doi:10.35799/dc.7.2.2018.20614.