Costa, M. L., et al. “GEOCHEMICAL EXPLORATION FOR GOLD IN DEEP WEATHERED LATERITISED GOSSANS IN THE AMAZON REGION, BRAZIL: A CASE HISTORY OF IGARAPÉ BAHIA DEPOSIT”. Geochimica Brasiliensis, vol. 10, no. 1, Dec. 2011, https://geobrasiliensis.emnuvens.com.br/geobrasiliensis/article/view/95.