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== Pranala luar ==
* {{en}} [http://www.cdc.gov/niosh/npg/npgd0293.html NIOSH Pocket Guide to Chemical Hazards] {{Webarchive|url=https://web.archive.org/web/20230510175102/https://www.cdc.gov/niosh/npg/npgd0293.html |date=2023-05-10 }}
* {{en}} [http://ecb.jrc.it/ European Chemicals Bureau] {{Webarchive|url=https://web.archive.org/web/20110722200125/http://ecb.jrc.it/ |date=2011-07-22 }}
* {{id}} [http://www.kompas.com/utama/news/0602/17/172140.htm Pengaturan pengedaran di Indonesia] {{Webarchive|url=https://web.archive.org/web/20070929103221/http://www.kompas.com/utama/news/0602/17/172140.htm |date=2007-09-29 }}
 
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