Pratiwi, Lidya, et al. “Comparison of Transfer Function Model and ARIMA-GARCH on Daily Stock Data in Agribusiness and Trade Sector”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 61, no. 2, Feb. 2022, pp. 57-69, https://gssrr.org/JournalOfBasicAndApplied/article/view/13724.