“Conclusions”

[35]  Coster, Helen. “Does Your Cell Phone Contain “Conflict Minerals”?.” January 5, 2011.http://blogs.forbes.com/helencoster/2011/01/05/does-your-cell-phone-contain-conflict-minerals/

[36] Journal of Minerals & Materials Characterization & Engineering, Vol. 6, No.1, 2007.  Jmme.org.  pp 69-77.

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