1684-1824
1684-1824
S1684-18242021000400987
Ecuador
00
08
2021
00
08
2021
43
4
987
1000
[
2020
48
1
1
28-37
]
[
2016
3
2
2
138
]
[
2018
]
[
2018
2
23
23
]
[
2020
2
1
1
]
[
Cepei
2017
]
[
2020
5
]
[
2020
20
1
1
63-74
]
[
Universidad Simón Bolivar
2020
]
[
2016
14
2
2
247-83
]
[
2016
13
2
2
69-78
]
[
2016
4
1
1
48-5
]
[
2020
]
[
2018
]
[
2020
26
1
1
25-7
]