Amri, Ihsan Fathoni, et al. “Peramalan Harga Emas Antam Menggunakan Metode Generalized Autoregressive Conditional Heterokedasticity (GARCH)”. UJMC (Unisda Journal of Mathematics and Computer Science), vol. 10, no. 1, June 2024, pp. 26-35, doi:10.52166/ujmc.v10i1.4679.