Liew, Venus Khim-Sen; Lau, Sie-Hoe and Ling, Siew-Eng (2005): A complementary test for ADF test with an application to the exchange rates returns. Unpublished.
Liew, Venus Khim-Sen; Baharumshah, Ahmad Zubaidi and Lau, Sie-Hoe (2002): Forecasting performance of Logistic STAR exchange rate model: The original and reparameterised versions. Published in: Jurnal Akademik No. December (December 2005): pp. 79-91.