1794-4449
1794-4449
S1794-44492020000100177
10.22507/rli.v17n1a19
Ecuador
Mexico
Ecuador
Ecuador
00
06
2020
00
06
2020
17
1
177
187
[
2017
33
2
2
247-57
]
[
2012
15
1
1
27-39
]
[
2015
25
3
3
40-5
]
[
2017
44
1
1
53-60
]
[
1994
56-8
]
[
2011
27
3
3
241-52
]
[
2011
2
3
3
45-55
]
[
2008
32-40
32-40
]
[
2012
3
2
2
]
[
2011
192
]