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Kuprum(II) sulfat Pautan luar
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WikiPedia: Kuprum(II) sulfat http://www.npi.gov.au/database/substance-info/prof... http://www.uncp.edu/home/mcclurem/ptable/copper/cu... http://www.ilo.org/public/english/protection/safew... http://www.ilo.org/public/english/protection/safew...