2631-2786 2631-2786 S2631-27862022000200131 10.35290/rcui.v9n2.2022.550 Ecuador Ecuador 00 08 2022 00 08 2022 9 2 131 147

2008 43 81 81 16-32 2003 3 2 2 17-23 2007 4 21-40 2012 2 2 2 57-68 2013 8 57 57 355-81 2004 6 1 1 2003 32 32 113-28 2004 XXV 2 2 6-23 2008 2013 2021 21 58 58 10-21 2017 2018 16 2 2 69-78 2015 75-91 2017 8 2 2 265-82 2016 7 2 2 74-97 2019 47 1 1 91-119 2018 23 1 1 16-23 2016 18 32 32 51-65 1995 2017 2 3 3 2012 7 7 23-6 2012 Rio Grande do Sul, Brasil 2009 5 2 2 29-44 2020 10 2 2