Tài liệu tham khảo

WikiPedia: Mangan http://www.npi.gov.au/database/substance-info/prof... http://books.google.com/?id=j-Xu07p3cKwC http://books.google.com/?id=zNicdkuulE4C&pg=PA631 http://www.onlinelawyersource.com/manganese/mangan... http://www.toxicweldingrodfumes.com http://www.webelements.com/webelements/elements/te... http://adsabs.harvard.edu/abs/1981MTA....12..749D http://adsabs.harvard.edu/abs/1998JOM....50e..14M http://adsabs.harvard.edu/abs/2003NuPhA.729....3A http://adsabs.harvard.edu/abs/2006E&PSL.251..334S