0257-4314
0257-4314
S0257-43142018000300020
Cuba
Ecuador
00
12
2018
00
12
2018
37
3
[
2014
14
2
2
52-65
]
[
2015
]
[
2015
2174-83
]
[
2012
37-52
]
[
1985
253-6
]
[
2015
11
]
[
2016
]
[
2006
32
]
[
1998
]
[
ITU
2017
]
[
2008
14
11-8
]
[
2001
164
]
[
OECD
2015
]
[
]
[
2016
]
[
2017
18
212-8
]
[
2011
6
]
[
2012
53-68
]
[
2014
9-19
]
[
UNESCO
2015
a
]
[
UNESCO
2015
b
]
[
UNESCO
2016
]
[
UNESCO
2017
a
]
[
UNESCO
2017
b
]
[
2016
]
[
2012
a
55-36
]
[
2012
b
69-92
]
[
2016
20
]