2550-6722 2550-6722 S2550-67222023000100085 10.37135/chk.002.19.05 Ecuador Ecuador Ecuador 00 04 2023 00 04 2023 19 85 101

2019 27 2022 61 3 3 254 2019 89 2 2 171 1984 32 1 1 196-233 2012 23 2016 1 2014 85 2019 28 2 2 323 2005 2004 2008 141 2005 12 3 3 331 2021 13 1 1 26 2020 135-56 Ministerio de Educación 2020 Ministerio de Educación 2020 2002 2004 12 3 3 309 2020 56 1 1 77 2021 3 1 1 120 2018 151 2016 43 2022 2019 13 11 11 1989 19 3 3 387