2182-4452 2182-4452 S2182-44522021000200017 10.31492/2184-2043.rilp2021.40/pp.17-33 Angola 30 12 2021 30 12 2021 40 17 33

1 Angola 2010 2 Angola 2020 3 2013 4 2018 5 2011 6 2014 7 2014 8 2015 40 3 667-84 9 2017 10 2008 4 1-10 11 2017 18 1 1 84-105 12 2004 13 2019 198-214 14 2013