0257-4314 0257-4314 S0257-43142021000300016 Uruguay Ecuador 00 12 2021 00 12 2021 40 3

2010 33 33 85-97 2011 2014 7 2 2 34-53 2005 2011 2011 2014 2019 55-73 2005 2018 2017 2017 4 2 2 28-35 2009 1989 71 71 1-9 2006 8 1 1 1-19 UNESCO 2018