Ho JS, Choo WC, Zhangyu R, Yee CL, Lau WT. Forecasting the High-Frequency Exchange Rate Volatility with Smooth Transition Exponential Smoothing. aamjaf [Internet]. 2022 Dec. 30 [cited 2023 Jun. 5];18(2):241–269. Available from: https://ejournal.usm.my/aamjaf/article/view/aamjaf_vol18-no2-2022_10