1727-897X
1727-897X
S1727-897X2020000300478
Cuba
00
06
2020
00
06
2020
18
3
478
484
[
Ministerio de Educación Superior
2018
25
25
48
]
[
MES
2019
65
140
140
23
]
[
2019
68
68
16
]
[
2015
26
No. Especial
No. Especial
15-31
]
[
2018
]
[
2007
4
2
2
9
]
[
2018
21
12
12
109-19
]
[
2001
]
[
2019
11
20
20
9
]
[
2017
]
[
2020
11
1
1
51-60
]
[
2019
1
45-52
]