2223-4861 2223-4861 S2223-48612022000400024 Ecuador Ecuador Ecuador 00 12 2022 00 12 2022 49 4 24 34

2018 10 4 4 179-85 2016 34 1 1 336-9 2016 9 18 18 45-55 2018 9 21 21 4395-405 2019 11 2 2 148-52 2017 22 1 1 237-42 2022 NTE INEN 176 2018 1966 240-50 2018 9 2 2 159-74 2017 2012 2013 6 2 2 65-70 2010 13 53-63 2021