1. Handbook of Photovoltaic Science and Engineering;Luque,2009
2. USGS, 2014 Minerals yearbook-Silicon;Schnebele,2014
3. Silicon for the Chemical and Solar Industry IX;Odden,2008
4. Refining Silicon. PV Education;Honsberg,2014
5. International Technology Roadmap for Photovoltaic (ITRPV);SEMI,2014