Kin, W. C., C. W. . Chong, A. M. . Nassir, M. S. . . Habibullah, and Z. . Yusop. “Volatility Forecasting Performance of Smooth Transition Exponential Smoothing Method: Evidence from Mutual Fund Indices in Malaysia”. Asian Economic and Financial Review, vol. 11, no. 10, Oct. 2021, pp. 829-5, doi:10.18488/journal.aefr.2021.1110.829.859.