2077-2955 2077-2955 S2077-29552019000100085 Angola Cuba 00 04 2019 00 04 2019 15 1 85 96

2010 15 15 97-107 2010 59 59 2-11 2001 2012 1 1 56-70 1984 2005 2014 UNESCO 2014 UNESCO-OECD 2010