2477-9105
2477-9105
S2477-91052018000100006
10.47187/perf.v2i20.26
Chile
Ecuador
00
12
2018
00
12
2018
2
20
6
12
[
2014
20
48-54
]
[
2013
2
]
[
2014
25
35-40
]
[
2007
34
]
[
2012
45
]
[
2006
]
[
2011
1
421-5
]
[
2005
30
21-30
]
[
2005
30
21-30
]
[
2000
]
[
2007
79
989-97
]
[
2002
82
1621-7
]
[
2006
13
13-9
]
[
2000
45
231-6
]
[
2008
15
8-16
]
[
2015
111-8
]