1982-9949
1982-9949
S1982-99492014000200039
10.17058/rea.v22i2.0039
Brazil
Brazil
00
12
2014
00
12
2014
22
2
39
67
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27
72
72
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28
2
2
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8
1
1
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19
48
48
69-88
]
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18
68
68
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25
89
89
]
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24
3
3
]
[
2
5
5
]
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16
1
1
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31
2
2
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15
04
04
]
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28
01
01
]
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18
54
54
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12
2
2
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16
46
46
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29
105
105
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3
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120
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[
09
02
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27
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72
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