2215-3411
2215-3411
S2215-34112019000300127
10.15517/ijds.2019.38366
Ecuador
Ecuador
00
12
2019
00
12
2019
21
3
127
136
[
2009
6a ed.
]
[
2008
9
6
6
108-4.
]
[
1988
65
2
2
262-4.
]
[
2016
15
5
5
714-723.
]
[
2017
]
[
2017
51
2
2
29-36.
]
[
2010
9
1
1
25-32.
]
[
2017
]
[
2016
.
]
[
2018
69
2
2
61-66.
]
[
2014
18
3
3
26-31
]
[
2011
2
5
5
37-46.
]
[
2013
]
[
2014
]
[
2019
68
1
1
17-24.
]
[
2014
7
1
1
51-6.
]
[
2015
26
4
4
345-50.
]
[
2017
18
2
2
88-94.
]
[
1995
]
[
1985
5a ed.
]
[
1990
69
524-9.
]
[
2003
91
3
3
231-5.
]
[
1999
47
1
1
98-103.
]
[
2013
7
3
3
455-464.
]
[
2009
1
1
1
13-6.
]
[
2016
.
]
[
2006
11
3
3
297-303.
]
[
2018
]
[
2016
]
[
2017
8
1
1
65-68.
]
[
2015
19
254
]
[
2014
11
2
2
171-4.
]
[
2001
30
1
1
35-9
]
[
2011
15
1
1
563-569.
]