1990-8644
1990-8644
S1990-86442021000400243
Ecuador
00
08
2021
00
08
2021
17
81
243
250
[
2015
]
[
2016
35
2
2
83-92
]
[
2020
]
[
2011
]
[
2011
19
26
26
307-22
]
[
2019
40
3
3
]
[
2007
15
6
6
]
[
2013
1
1
1
30-42
]
[
2016
]
[
2019
]
[
2014
]
[
1993
]
[
2009
]
[
2016
26
59
59
9-20
]
[
2018
]
[
2014
]
[
2015
7
3
3
56-62
]
[
2016
69
69
139-54
]