Nga, L.T.V., Huy, D.T.N., Trang, L.T. and Dat, P.M. 2020. An Expansion Analysis of the Volatility of Market Risk in Groups of Viet Nam Listed Computer and Electrical Company Groups during the Financial Crisis 2007-2009. Current Strategies in Economics and Management Vol. 1. (Jun. 2020), 110-121.