1982-9949 1982-9949 S1982-99492021000200001 10.17058/rea.v29i2.16825 Brazil Brazil 00 05 2021 00 05 2021 29 2 1 5 2018 1992 2020 2021 29 1 1 01-7 2018 4 UNISC AO VIVO