Jáuregui, K., Centeno, A. and Solano, D. 2005. Coppermine: riesgos de la no concentración. Journal of Economics, Finance and Administrative Science. 10, 18-19 (Dec. 2005), 179–193. DOI:https://doi.org/10.46631/jefas.2005.v10n18-19.10.