1607-4041
1607-4041
S1607-40412019000100130
10.24320/redie.2019.21.e30.2051
Venezuela
00
00
2019
00
00
2019
21
[
1976
]
[
2015
25
46
46
38-48
]
[
2015
10
20
20
143-53
]
[
2009
9
10
10
20-33
]
[
2014
]
[
2015
14
1
1
57-74
]
[
2013
16
9
9
67-89
]
[
2007
10
18
18
21-36
]
[
2013
17
3
3
115-40
]
[
2002
]
[
2013
37
1
1
29-42
]
[
2003
]
[
2005
7
11
11
37-80
]
[
2007
44
4
4
1-5
]
[
2003
]
[
2014
]
[
2015
México
]
[
2010
]
[
2007
]
[
2015
37
1
1
85-90
]
[
2005
]
[
2002
2a. ed.
]