2448-6442
2448-6442
S2448-64422019000200489
10.24201/es.2019v37n110.1790
Ecuador
00
08
2019
00
08
2019
37
110
489
504
[
2018
2
251-64
]
[
2014
111-49
]
[
2013
75
2
2
173-200
]
[
2011
]
[
2005
]
[
1996
]
[
2000
7
7
30-67
]
[
1998
]
[
2002
]
[
1994
]
[
2015
125-49
]
[
2011
]
[
1999
]
[
1998
199-248
]
[
1991
]
[
1997
]
[
2007
]
[
2006
]
[
2006
]
[
1978
]
[
2009
35
13-8
]
[
1997
79
297-344
]
[
1995
]
[
2001
5
3
3
237-53
]
[
1996
10
15-31
]
[
1989
113-90
]
[
2004
55
55
273-300
]
[
1998
]
[
2005
]
[
2006
27
27
255-78
]
[
1969
]
[
2002
363-81
]
[
2010
60
60
98-112
]