Amorim, João Victor Alves, Gustavo Souza Valladares, Francisco John Lennon Tavares da Silva, and Janaira Marques Leal. 2019. “Use of Thermal Band of TM/Landsat 5 and NDVI on Digital Soil Mapping of Parnaíba Delta –Piauí”. Notheast Geoscience Journal 5 (October):17-29. https://doi.org/10.21680/2447-3359.2019v5n0ID18414.