2178-5201 2178-5201 S2178-52012017000500505 10.4025/actascieduc.v39isuppl.29849 Brazil Brazil 00 12 2017 00 12 2017 39 5 505 513

5 9 9 40-56 2 4 1 1 185-200 2a 2a 3a 4a 1 16 16 95-104