1,2, & 3
- Design Council. (2011) Design for Innovation. Facts, figures and practical plans for growth.
Design Council. London, UK. 2011
- Fishkin, Moz Staff. (2015) SEO: The Beginner's Guide to Search Engine Optimization.
Retrieved from: https://moz.com/beginners-guide-to-seo/how-usability-experience-and-content-affect-search-engine-rankings (2017)
- Weinschenk (2011)The ROI of User Experience with Dr. Susan Weinschenk
Retrieved from: https://www.youtube.com/watch?v=O94kYyzqvTc