2177-6210 2177-6210 S2177-62102018000100026 10.4013/edu.2018.221.03 Brazil Brazil 00 03 2018 00 03 2018 22 1 26 34

116 116 107-42 25 89 89 1105-126 5 1 1 30-47 5 1 1 30-47 38 139 139 507-24