0121-246X
0121-246X
S0121-246X2018000200043
10.17533/udea.rfo.v30n1a5
Venezuela
00
12
2018
00
12
2018
30
1
43
54
[
1973
45
2
2
211-27
]
[
2010
124
2
2
105-12
]
[
2011
]
[
2002
12
6
6
423-8
]
[
2011
53
1
1
37-42
]
[
2012
6
2
2
37-42
]
[
2013
58
5
5
1341-7
]
[
2010
41
3
3
215-23
]
[
2010
]
[
2015
4
1
1
]
[
1976
3
5
5
411-21
]
[
2005
50
5
5
1-11
]
[
2011
211
1-3
1-3
41-6
]
[
2013
20
7
7
875-83
]
[
2016
8
1
1
47-51
]
[
2012
17
5
5
e871-7
]
[
2012
214
1-3
1-3
213.e1- 6
]
[
2013
14
4
4
165-9
]
[
2014
234
187.e1-7
]
[
2014
244
36-41
]
[
2014
8
3
3
453-9
]
[
2010
41
3
3
215-23
]
[
2006
44
2
2
184-91
]
[
2015
16
1
1
7-17
]
[
2013
20
1
1
40-5
]
[
2012
39
5
5
412-1
]