ebrary, Inc. (2005). Website usability: Research and case studies. Emerald Group Publishing.
Chicago-referens (17:e uppl.)ebrary, Inc. Website Usability: Research and Case Studies. Bradford, England: Emerald Group Publishing, 2005.
MLA-referens (9:e uppl.)ebrary, Inc. Website Usability: Research and Case Studies. Emerald Group Publishing, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.