2077-2874

2077-2874

S2077-28742020000100151

Cuba

Cuba

00 03 2020

00 03 2020

12 1 151 168

1

2018

2

2003

3

Ministerio de Educación 2017

4

1994

5

2016

6

2010

7

2018 2

2018

8

1975

9

2014 23 3 3

10

2012

11

2017 21 10 10