0120-548X
0120-548X
S0120-548X2021000100081
10.15446/abc.v26n1.81888
Ecuador
Spain
00
04
2021
00
04
2021
26
1
81
88
[
1998
79
79
911-27
]
[
2011
471
51-7
]
[
2004
85
85
2656-63
]
[
2016
12
12
20150623
]
[
2012
486
7401
7401
59-67
]
[
2017
219
175-83
]
[
2014
12
1
1
67-75
]
[
2011
366
2426-37
]
[
2003
12
2043-56
]
[
2016
266-90
]
[
2005
50
50
1391-403
]
[
2020
]
[
2019
]
[
1978
415
]
[
2016
97
97
1949-60
]
[
2018
817
1
1
57-69
]
[
2005
75
1
1
3-35
]
[
015
112
112
E2988-9
]
[
2015
416
]
[
2012
a
14-27
]
[
2012
b
3
7
7
12-7
]
[
2020
68
1
1
122-38
]
[
2018
41
41
1-10
]
[
2010
365
365
2619-26
]
[
2018
40
108
108
38-45
]
[
2012
400
]
[
2004
13
13
231-4
]
[
1992
60-70
]
[
2019
838
838
29-43
]
[
2019
38
2
2
587-605
]
[
1997
45
45
855-9
]
[
1949
28
28
315-22
]
[
2007
247-78
]
[
2003
60
60
182-92
]
[
2003
18
18
561-6
]
[
2005
]
[
1994
18
18
43-57
]
[
2003
48
48
982-94
]
[
1999
14
10
10
401-5
]
[
1957
38
38
913-20
]
[
2013
502
502
7
]
[
2014
346
346
241-4
]
[
1996
77
77
1661-6
]