Albuquerque, M.R. de et al. 2013. Green GDP of sugarcane industry as sustainability indicator: A case study in Paraná from 2007 to 2011. Economia & Região. 1, 2 (Dec. 2013), 61–75. DOI:https://doi.org/10.5433/2317-627X.2013v1n2p61.