2215-2466 2215-2466 S2215-24662021000100135 10.22458/rr.v11i1.3391 Ecuador 00 06 2021 00 06 2021 11 1 135 146

2016 207-20 2012 162 2019 58-85 2020 1998 1997 2005 2018 29-56 1998 8 47-99 2017 2017 2016 93-134 2015 47 47 100-1115 2018 57-97 1922