1. Gläser, T., M. Jaritz, and P. Sackl. 2013. Mapping the disciplines of user experience design. by envis precisely GmbH. Accessed February 20, 2019. https://github.com/envisprecisely/disciplines-of-ux/blob/master/The-Disciplines-of-User-Experience-Design_envis-precisely.pdf.
2. IDEO. 2015. Design thinking in a day: An at-a-glance guide for advancing your library. Accessed February 1, 2019. http://designthinkingforlibraries.com/.