1815-7696
1815-7696
S1815-76962020000200315
Cuba
Cuba
00
06
2020
00
06
2020
18
2
315
325
[
2016
14
1
1
93-9
]
[
2016
14
1
1
302-7
]
[
2004
24
113-24
]
[
2019
]
[
2017
20
1
1
201-17
]
[
2015
47-100
]
[
2019
9
9
53-81
]
[
Ministerio de Educación (MINED)
2016
La Habana
]
[
2018
16
1
1
65-78
]
[
2017
12
1
1
4-11
]
[
2012
26
2
2
]