Usman, M., Wardhana, M. Y. and Istiqamah, M. (2022) “Analysis of the Risk of Rubber Prices Using the ARCH-GARCH and VaR Methods on Farm Income in West Aceh District”, International Journal on Advanced Science, Engineering and Information Technology, 12(3), pp. 1018–1022. doi: 10.18517/ijaseit.12.3.13637.