2223-1773 2223-1773 S2223-17732022000300075 10.34982/2223.1773.2022.v7.no3.006 Ecuador 00 12 2022 00 12 2022 7 3 75 87

2020 38 0 0 2022 2016 2018 2017 36 4 4 1-16 2019 2020 38 0 0 2021 2016 1989