ebrary, Inc. (2005). Website usability: Research and case studies. Emerald Group Publishing.
Chicago-viite (17. p.)ebrary, Inc. Website Usability: Research and Case Studies. Bradford, England: Emerald Group Publishing, 2005.
MLA-viite (9. p.)ebrary, Inc. Website Usability: Research and Case Studies. Emerald Group Publishing, 2005.
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