Bum Suk Kim. Linkages between the U.S. and Asia-Pacific Exchange Traded Funds (ETF) Markets: Evidence from the 2007-2008 Global Financial Crisis. aamjaf. 2011;7(1):53–72. Accessed July 26, 2025. https://ejournal.usm.my/aamjaf/article/view/aamjaf_vol7-no1-2011_3