1. Health and environmental effects of lead and other commonly used elements in microelectronics;Smith,2004
2. Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment, Official Journal of the European Union L 037/19, 2003.
3. Administration on the Control of Pollution Caused by Electronic Information Products (http://www.chinarohs.com/).
4. Act for Resource Recycling of Electrical and Electronic Equipment and Vehicles—Korea RoHS, WEEE & ELV (http://uk.farnell.com/images/en/ede/pdf/rohs_korea_oct08.pdf).
5. Electronic Waste Recycling Act of 2003, California, U.S.A., (http://www.calrecycle.ca.gov/electronics/act2003/).