0121-5167
0121-5167
S0121-51672021000100225
10.17533/udea.espo.n60a10
Ecuador
00
04
2021
00
04
2021
60
225
249
[
2013
26
2
2
239-58
]
[
2014
21
3
3
475-80
]
[
2013
26
2
2
193-5
]
[
2013
26
2
2
217-37
]
[
2013
26
2
2
197-215
]
[
2009
11
1
1
7-31
]
[
2009
11
1
1
1-5
]
[
2007
51
3
3
532-51
]
[
2013
26
2
2
307-28
]
[
2014
21
3
3
453-69
]
[
2015
43-60
]
[
2002
]
[
2012
]
[
2012
343-70
]
[
2015
a
53
11-30
]
[
2015
b
]
[
2015
c
v
2
2
80-98
]
[
2017
20
2
2
142-57
]
[
1994
105-17
]
[
1993
25
3
3
275-96
]
[
2003
373-404
]
[
2016
31-50
]
[
2015
a
]
[
2015
b
3-18
]
[
2009
11
1
1
33-46
]
[
2013
41
2
2
290-308
]
[
2009
1
3
3
455-65
]
[
2010
8
1
1
18-23
]
[
2011
]
[
2013
41
2
2
367-78
]
[
2015
43
3
3
942-65
]
[
2015
269-92
]
[
1995
]
[
2004
]
[
1959
19
2
2
79-88
]
[
2000
29
507-48
]
[
2010
]
[
2006
689-708
]
[
2010
184-211
]
[
2009
1
1
1
15-48
]
[
2006
]
[
2013
26
2
2
259-81
]
[
2000
94
2
2
251-67
]
[
2008
33
67-91
]
[
2010
203-40
]
[
1993
44
4
4
759-74
]
[
2010
167-202
]
[
2015
19-42
]
[
2015
101-16
]
[
2014
131-59
]
[
2006
]
[
2009
11
1
1
65-82
]
[
2015
117-40
]