Sanches, A. C., Sauer, L., Binotto, E., & Espejo, M. M. B. (2019). Analysis of studies on sustainability indicators in tourism: an integrative review. Revista Turismo Em AnĂ¡lise, 29(2), 292-311. https://doi.org/10.11606/issn.1984-4867.v29i2p292-311