Nuryadin, D., I. B. P. C. P. Sarayuda, and D. Q. Nada. “Forecasting the Stock Price of Coal and Coal Commodity Companies Using the ARIMA and ARCH/GARCH Models for 2011-2022”. Jurnal Samudra Ekonomi Dan Bisnis, Vol. 16, no. 1, Jan. 2025, pp. 29-45, doi:10.33059/jseb.v16i1.10797.