1. A. C. S. G. C. Institute “Explore the Design Principles of Green & Sustainable Chemistry & Engineering ” [Online].https://www.acs.org/content/acs/en/greenchemistry/principles.html(accessed: February2021).
2. Directive 2002/96/EC of the European Parliament and of the Council of 27 January 2003 on waste electrical and electronic equipment (WEEE) https://ec.europa.eu/environment/waste/weee/old_en.htm(accessed: February2021).
3. C. P.Baldé F.Wang R.Kuehr J.Huisman The global e‐waste monitor – 2014 United Nations University IAS – SCYCLE Bonn Germany p.44 https://i.unu.edu/media/unu.edu/news/52624/UNU-1stGlobal-E-Waste-Monitor-2014-small.pdf(accessed: February2021). That number has since risen to only 42.5% in 2019; internationally only 17.4% of e‐waste was collected and recycled in 2019.
4. Ellen MacArthur Foundation What is a circular economy? https://www.ellenmacarthurfoundation.org/circular-economy/concept(accessed: February2021).
5. H. J.Thamhain Paper presented at Project Management Institute Annual Seminars & Symposium Houston TX Project Management Institute Newtown Square PA https://www.pmi.org/learning/library/phase-gate-processes-promising-complex-547(accessed: February2021).