1. AS1391. Australian Standard. Metallic materials—tensile testing at ambient temperature. Sydney; Standard Australia; 2005.
2. AS4100. Australian Standard. Steel structures. Sydney: Standard Australia; 1998.
3. AS/NZS4600. Australian/New Zealand standard. Cold-formed steel structures. Sydney; Standard Australia; 2005.
4. The stiffness and strength of portal frames composed of cold-formed members;Baigent,1981
5. The modelling of the collapse during roll-over of bus frames consisting of square thin-walled tubes;Cimpoeru,1992