1134-8046
1134-8046
S1134-80462020000200010
10.20986/resed.2020.3776/2019
Perú
Bolivia
Perú
Perú
00
04
2020
00
04
2020
27
2
127
132
[
2012
2
3
3
128-34
]
[
2007
33
1
1
81-6
]
[
2010
2010
1-9
]
[
2009
30
2
2
221
]
[
2016
41
5
5
621-7
]
[
2019
26
3
3
199-202
]
[
2017
42
3
3
372-6
]
[
1997
23
3
3
293-7
]
[
2014
36
1
1
44-9
]
[
2010
20
9
9
805-11
]
[
2017
64
8
8
880-2
]
[
2018
28
1
1
74-5
]
[
2018
43
2
2
217-9
]
[
2018
44
41
]
[
2018
11
9
9
250-2
]
[
2018
45
35-6
]
[
2018
28
3
3
298-9
]
[
2018
10
2
2
2241
]
[
2019
72
1
1
68-71
]
[
2018
65
5
5
287-90
]
[
2019
12
9
9
299-301
]
[
2020
59
38-9
]