2477-9105
2477-9105
S2477-91052019000100064
10.47187/perf.v2i22.282
Ecuador
00
12
2019
00
12
2019
2
22
64
70
[
2018
]
[
2014
67
4
4
373-8
]
[
2012
47
248-52
]
[
2018
170
611-9
]
[
2015
]
[
2016
]
[
2014
21
3
3
45-54
]
[
2018
]
[
2014
36
55-68
]
[
2014
54
6
6
]
[
2013
]
[
2011
274
]
[
2015
37
6-1
6-1
93-103
]