1981-416x 1981-416x S1981-416x2019000100195 10.7213/1981-416x.19.060.ds09 Portugal Portugal 00 01 2019 00 01 2019 19 60 195 220

2017 33 1-28 2012 26 5 5 473-6 1977 BATTELLE FOR KIDS 2015 2008 2010 18 35 35 25-31 2012 5 2 2 4-10 2018 113-25 1990 6 6 97-105 2000 2 2 203-19 2005 2003 2000 1 1 135-46 1994 13 13 20-30 2010 2017 13 1 1 77-90 1996 2002 13 3 3 259-75 2001 14 2008 2000 2003 20 20 45-52 1987 177-99 1990 163-205 UNITED NATIONS EDUCATIONAL, SCIENTIFIC AND CULTURAL ORGANIZATION (UNESCO) 2014 1986 2005 53 4 4 5-23