2462-8522
2462-8522
S2462-85222018000100039
10.15446/cr.v4n1.65771
Ecuador
00
06
2018
00
06
2018
4
1
39
45
[
2001
24
10
10
489-94
]
[
2007
17
4
4
328-30
]
[
2012
22
5
5
301-3
]
[
2009
2009
914-51
]
[
2013
13
33
]
[
2011
79
6
6
557-9
]
[
2004
7
1126-52
]
[
2000
30
1
1
72-6
]
[
2002
72
2
2
161-3
]
[
2012
6
2
2
172-87
]
[
2015
41
4
4
18-20
]
[
2010
25
1
1
86-93
]
[
2009
74
2
2
118-21
]
[
1994
86
839-44
]
[
2006
101
9
9
2139-46
]
[
2004
187
4
4
547-8
]
[
2000
67
6
6
619-20
]
[
2016
8
1
1
65-76
]