2077-2955
2077-2955
S2077-29552021000200341
Ecuador
Cuba
00
08
2021
00
08
2021
17
2
341
355
[
2018
]
[
2011
16
1
1
40-3
]
[
2007
3
8
8
100-32
]
[
2003
3ra ed
]
[
2006
12
12
12
88-103
]
[
1991
]
[
2010
6
2
2
303-12
]
[
2019
11
11
30-7
]
[
2008
75-82
]
[
2015
]
[
2018
]
[
2010
36
36
633-62
]
[
2018
32
124
124
33-49
]
[
2014
]
[
2017
8
2
2
72-80
]
[
2015
11
11
201-12
]