Camacho Cardoso, O.D.M. and Fábrega D., J.R. 2018. Valuation of Natural Resources and Performance Indicators, Fundamental Support for Creation of a Systemic Financial Model for Watersheds. RA Journal Of Applied Research. 4, 12 (Dec. 2018), 2126–2133. DOI:https://doi.org/10.31142/rajar/v4i12.01.