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2011 2001 2018 25 2 2 282-93 2005 2008 2. ed 2013 10. ed 2012 4 2 2 2005 september 2005 Recife 1987 11. ed. 2002 64-89 2015 2006 11. ed 2004 2015 2017 64 64 301-13 UNESCO. United Nations Educational, Scientific and Cultural Organization Setor de Educação da Representação da Unesco no Brasil 2015