1. Barnes, S. &Vidgen, R., 2000. Web Qual: An exploration of web-site quality. http://www2.ufp.pt/∼lmbg/formacao/web_quality.pdf.
2. Barnes, S.&Vidgen, R. 2001. Assessing the quality of auction web sites. http://www.webqual.co.uk/papers/auction.pdf.
3. An integrative approach to the assessment of e commerce quality;Barnes;The Journal of Electronic Commerce Research,2002
4. Interactive e-government: evaluating the web site of the UK Inland Revenue;Barnes;Journal of Electronic Commerce in Organizations,2003
5. Using protocol analysis to evaluate the usability of a commercial web site;Benbunan-Fich;Inf Manage,2001