1561-3194 1561-3194 S1561-31942023000400009 Ecuador 00 00 2023 00 00 2023 27

1. 2019 2. 2013 141-176. 3. 2022 29 2 2 4. 2013 5. 2000 131 10 10 1496-98. 6. 2020 10 20 20 152-170. 7. 2022 15 1 1 1668-7280. 8. 2020 1 4 4 95-104.