1809-3876 1809-3876 S1809-38762020000401815 10.23925/1809-3876.2020v18i4p1815-1834 Brazil Brazil 00 10 2020 00 10 2020 18 4 1815 1834

2009 30 109 109 1081-102 2011 239 239 2008 2005 2018 2003 2014 12 2 2 CETIC 2019 2010 37 37 129-52 2006 2012 95-145 2017 São Luiz, MA 1997 2020 2000 INEP 2017 INEP 2018 2008 29 104 104 687-715 2018 2005 2018 2004 2009 2013 2013 8 2017 2015 2005 25 25 2012 17-29 2019 1995 77-91 2009 27 1 1 97-118