1816-8949
1816-8949
S1816-89492020000100101
10.18004/anales/2020.053.01.101-106
Paraguay
Paraguay
00
04
2020
00
04
2020
53
1
101
106
[
2007
N18
4
4
234-9
]
[
2018
40
4
4
1179-85
]
[
2007
57
43-66
]
[
2003
1-18
]
[
2002
]
[
1997
02
237-46
]
[
2002
235
424-34
]
[
2004
15
307-15
]
[
2010
341
c7170
]
[
2020
]
[
2019
]
[
2019
Vol 10
5
5
231-21
]
[
2019
Vol 24
1-7
]