2307-0420
2307-0420
S2307-04202017000300042
10.18004/sopaci.diciembre.42-43
Paraguay
Paraguay
Paraguay
00
12
2017
00
12
2017
41
3
42
43
[
1988
2
2
820
]
[
1996
441
]
[
2009
12
1ra
]
[
1993
388
]
[
1997
21
130-5
]
[
2002
1-2
1-2
50 -67
]
[
2003
4
1
1
10-1
]
[
1999
2
2
30-5
]
[
2013
1
1
14-21
]
[
2013
2da
]
[
2013
62
102-11
]
[
1994
81
1
1
707-8
]