“Nonlinear Prediction of The Standard & Poor’s 500 and The Hang Seng Index under A Dynamic Increasing Sample”. Asian Academy of Management Journal of Accounting and Finance, vol. 5, no. 2, Dec. 2009, pp. 101–118, https://ejournal.usm.my/aamjaf/article/view/aamjaf_vol5-no2-2009_5.