SOME KEY SOURCES
Essick, K. (2001) "Guns, Money and Cell Phones." The Industry Standard Magazine. 11 June 2001
Hayes, K and Burge, R. "Coltan Mining in the Democratic Republic of Congo: How tantalum-using industries can commit to the reconstruction of the DRC." Fauna & Flora International, Cambridge, UK. (2003)
Kern, K. "The Human Cost of Cheap Cell Phones" in Steven Hiatt (ed). A Game as Old as Empire: The Secret World of Economic Hit Men and the Web of Global Corruption. Berrett-Koehler Publishers, San Francisco, USA. (2007)