1. 1. Chang, C.-C., and Wu, J.-C.; The underlying factors of product form classification, International Journal of Industrial Ergonomics, 39(5), pp.667-680, 2009.
2. 2. Schütte, S., Eklund, J. A. E., Axelsson, J. R. C., and Nagamachi, M.; Concepts, methods and tools in Kansei engineering, Theoretical Issues in Ergonomics Science, 5(3), pp.214-231, 2004.
3. 3. BMWBLOG; http://www.bmwblog.com/2011/04/16/video-designers-perspective-z4-with-juliane-blasi/ (accessed 2020.11.28).
4. 4. McKinsey & Company Official Website; http://www.mckinsey.com/business-functions/sustainability/our-insights/style-thats-sustainable-a-new-fast-fashion-formula (accessed 2020.11.28).
5. 5. Shep Hyken’s customer service blog; https://hyken.com/customer-experience-2/customer-preference/ (accessed 2020.11.28).