J. R. M. de Carvalho, W. F. Curi, E. K. M. de Araújo Carvalho, and R. C. Curi, “ PB / Proposal and Validation of Indicators for Hydro-environmental Watershed: A Case Study in the Sub-Basin of the .”., S&N, vol. 23, no. 2, Oct. 2011.