1. The Global E-Waste Monitor—2014;Baldé,2015
2. Greenpeace, the E-Waste Problemhttp://www.greenpeace.org/international/en/campaigns/toxics/electronics/the-e-waste-problem/
3. Policy Briefs on E-Waste What, Why and Howhttp://www.unep.org/ietc/Portals/136/Other%20documents/PolicyBriefs/13052013_E-Waste%20Policy%20brief.pdf
4. Average Lifespan of Desktop PCs, Notebooks, Laptops and Tablets from 2012 to 2017https://www.statista.com/statistics/267474/average-life-of-pc-and-tablets/