0257-4314
0257-4314
S0257-43142018000300008
Ecuador
Cuba
00
12
2018
00
12
2018
37
3
[
2012
13-32
]
[
1993
]
[
2002
20
411-29
]
[
2004
]
[
2014
]
[
2009
]
[
1996
]
[
2001
157-88
]
[
2011
74-104
]
[
2014
99-108
]
[
2000
]
[
1998
]
[
1996
765-86
]
[
2014
]
[
2015
114-30
]
[
2010
]
[
2015
76-88
]
[
1988
9na Ed
308-33
]
[
2014
12
]
[
2015
]
[
2014
3
21-31
]
[
2016
291-322
]
[
2015
23
63-70
]
[
2012
2
1-16
]
[
2013
10
98-111
]
[
2016
31-45
]
[
2013
3
7-11
]
[
2003
]
[
2016
1-14
]
[
OREALC/UNESCO
2016
]
[
2009
]
[
2001
]
[
2012
103-22
]
[
2004
189-206
]
[
2004
1
3-9
]
[
1990
]
[
1967
38-9
]
[
2016
]
[
2006
]
[
2016
]
[
1950
]
[
2000
]
[
2006
]
[
2013
]