Francisca Marmentini Rovani, Franciele, and Márcio Viera. “ZONEAMENTO ECOLÓGICO-ECONÔMICO DE SILVEIRA MARTINS – RS”. Goiano Bulletin of Geography, vol. 37, no. 1, Apr. 2017, pp. 140-57, https://doi.org/10.5216/bgg.v37i1.46249.