Worthington, A., & Higgs, H. (2005). Market risk in demutualised self-listed stock exchanges: An international analysis of selected time-varying betas. School of Economics and Finance, Queensland University of Technology.

Worthington, Andrew, and Helen Higgs. Market Risk in Demutualised Self-listed Stock Exchanges: An International Analysis of Selected Time-varying Betas. Brisbane: School of Economics and Finance, Queensland University of Technology, 2005.

Worthington, Andrew, and Helen Higgs. Market Risk in Demutualised Self-listed Stock Exchanges: An International Analysis of Selected Time-varying Betas. School of Economics and Finance, Queensland University of Technology, 2005.