“Penerapan Model Threshold Generalized Autoregressive Conditional Heteroscedastic (TGARCH) Dalam Peramalan Harga Emas Dunia”, JEM, vol. 3, no. 1, pp. 75–104, Nov. 2015, Accessed: Jul. 01, 2026. [Online]. Available: https://ejournal-science.upi.edu/jem/article/view/93