1990-8644
1990-8644
S1990-86442021000600232
Ecuador
00
12
2021
00
12
2021
17
83
232
236
[
2021
16
16
65-72
]
[
2018
12
2
2
]
[
2014
46
3
3
256-68
]
[
2018
]
[
2013
]
[
2019
12
3
3
]
[
2021
46
]
[
2009
26
6
6
529-39
]
[
2016
30
69-72
]
[
2021
16
16
73-81
]
[
2014
142
4
4
145-9
]
[
2007
41
139-49
]
[
2019
10
6
6
28-38
]
[
2002
28
2
2
]
[
2020
2
11
11
79-98
]
[
2020
13
27-36
]