2414-8938
2414-8938
S2414-89382017000200031
10.30545/academo.2017.jul-dic.5
Paraguay
00
12
2017
00
12
2017
4
2
31
38
[
2011
17
1
1
31-6
]
[
2007
3
43-58
]
[
2006
5
3
3
511-20
]
[
2007
35
1
]
[
2003
21
1
1
41-69
]
[
2002
]
[
2006
]
[
2015
7
3
3
]
[
2009
27
1
1
63-84
]
[
2002
14
2
2
363-8
]
[
2006
40
6
6
1213-22
]
[
2011
35
157-66
]
[
2005
]
[
1995
69
4
4
719-27
]
[
2003
44
3
3
275-91
]
[
2009
a
58
]
[
2009
b
]
[
2015
15
1
1
9-20
]
[
1989
13
4
4
]
[
2011
]
[
2005
28
397-409
]