2521-2281
2521-2281
S2521-22812020000200052
10.52379/mcs.v4i2.147
Paraguay
00
08
2020
00
08
2020
4
2
52
59
[
2010
73
4
4
147-56
]
[
2009
20
70-6
]
[
2008
149
5
5
334-41
]
[
2004
292
23
23
2880-9
]
[
2004
78
505-16
]
[
2010
67
40-6
]
[
2009
]
[
2008
1
33-9
]
[
2017
1
1
1
26-30
]
[
2001
52
397-422
]
[
2009
24
3
3
440-author reply 441
]
[
2006
]
[
2007
]
[
2004
35
173-8
]
[
2007
2
1-13
]
[
2009
43
3
3
274-82
]
[
2006
81
1435-42
]
[
2010
103
8
8
758-63
]
[
2010
10
10
1016-26
]
[
2004
291
5
5
637
]
[
1998
158
4
4
342-8
]
[
2014
40
4
4
336-41
]
[
2009
30
2
2
141-9
]
[
1990
150
4
4
883-6
]
[
2014
3
3
26-35
]
[
1990
88
4
4
333-6
]
[
2015
24
1
1
30-8
]
[
2017
358:j3707
]
[
1998
158
16
16
1789-95
]
[
2016
91
9
9
1251-6
]
[
1986
42
3
3
488-92
]
[
1996
3
]
[
2012
147
2
2
168-74
]
[
2010
8
4
4
348-53
]
[
2010
304
11
11
1181-90
]
[
2011
306
9
9
952-60
]
[
2016
54
4
4
291-8
]
[
2015
63
2
2
54-63
]
[
2001
36
6
6
540-3
]
[
2019
19
1
1
413
]
[
2018
23
1
1
1535738
]
[
2016
316
21
21
2214-36
]
[
2012
9
1
1
14-20
]
[
2010
10
2
2
110-26
]