2215-3411
2215-3411
S2215-34112021000100064
10.15517/ijds.2020.41442
Ecuador
00
04
2021
00
04
2021
23
1
64
75
[
2008
29
8
8
494-498-505
]
[
2012
]
[
2013
17
9
9
2119-25
]
[
2010
35
3
3
324-9
]
[
2014
54
0
0
203-21
]
[
2007
35
12
12
903-8
]
[
2015
113
1
1
17-21
]
[
2009
28
1
1
44-56
]
[
2013
17
4
4
1201-8
]
[
2013
17
7
7
1759-64
]
[
2014
112
3
3
555-60
]
[
2010
38
7
7
553-9
]
[
2013
308-16
]
[
2014
18
2
2
515-23
]
[
2014
27
4
4
331-7.
]
[
2014
42
6
6
677-83
]
[
2014
534382
]
[
2011
1-8
]
[
2013
109
2
2
83-7
]
[
2014
17
2
2
101-13
]
[
2015
]
[
2015
28
1
1
30-2
]
[
2014
112
6
6
1461-71
]
[
2018
13
12
12
]
[
2019
121
5
5
811-20
]
[
2018
10
4
4
0
]