2661-6742
2661-6742
S2661-67422020000200061
10.37135/ee.04.09.08
Ecuador
Ecuador
Ecuador
00
12
2020
00
12
2020
14
2
61
70
[
2014
27
132
132
1-5
]
[
2014
26
163-7
]
[
2015
49
9
9
599-602
]
[
2007
]
[
2018
53
1-8
]
[
2008
]
[
2014
13
1
1
1-14
]
[
2010
]
[
2007
9
6
6
644-51
]
[
2018
32
3
3
471-7
]
[
2014
2da ed
]
[
2018
33
4
4
596-606
]
[
2011
33
1
1
13-8
]
[
2016
18
56-61
]
[
2016
]
[
2018
19
305
305
1-11
]
[
2012
19
150
150
750-66
]
[
2012
13
4
4
219-26
]
[
2011
3
105
105
44-50
]
[
2015
71
1
1
15-21
]
[
2015
37
3
3
105-11
]
[
2010
2
2
2
109-18
]