1727-897X 1727-897X S1727-897X2020000100016 Cuba 00 02 2020 00 02 2020 18 1 16 20

1 Parlatino-Unesco 2002 2 2017 56 2 2 5 3 2017 4 2017 5 2017 6 2011 7 1954 8 2000 1 1 1 28-31 9 2003 10 2017 15 4 4 10 11 2019