1390-6542
1390-6542
S1390-65422020000100028
10.29019/enfoque.v11n1.577
Ecuador
Ecuador
00
03
2020
00
03
2020
11
1
28
40
[
2017
210-3
]
[
2018
64
1
1
136-43
]
[
2019
2019
]
[
2016
149
149
209-28
]
[
2012
]
[
2015
10
65-74
]
[
2017
1-4
]
[
2019
58
21-36
]
[
2015
199
689-94
]
[
2015
]
[
2018
]
[
2014
]
[
2018
487
37-45
]
[
2018
]
[
2015
]
[
2015
16
207-11
]
[
2019
72
1-13
]
[
2011
]
[
2019
]
[
2013
47
37-46
]
[
2013
]
[
2019
]
[
2016
]
[
2008
]
[
2014
]
[
2017
]