1. UNEP (United Nations Environment Programme, DEWA/GRID-Europe), E-waste, the hidden side of IT equipment's manufacturing and use, Environment Alert Bulletin 5, Nairobi, Kenya, 2005.
2. European Commission, Directive 2002/96/EC of the European Parliament and of the Council on Waste Electrical and Electronic Equipment, Official Journal of the European Commission L37/24 (2003) Brussels.
3. Valorization of printed circuit boards from waste electrical and electronic equipment by pyrolysis;Williams;Waste and Biomass Valorization,2010
4. A Scoping Study: End-of-Life Printed Circuit Boards,2002
5. A novel flowsheet for the recovery of metal values from waste printed circuit boards;Das;Resources, Conservation and Recycling,2009