1390-6542
1390-6542
S1390-65422018000400045
10.29019/enfoqueute.v9n4.398
Colombia
00
12
2018
00
12
2018
9
4
45
56
[
2011
]
[
2017
32
9
9
7034-44
]
[
2016
40
21
21
9079-94
]
[
2016
230-3
]
[
2013
71
4
4
621-33
]
[
1993
1 edition
]
[
2014
47
3
3
4493-8
]
[
2011
]
[
1999
44
1
1
208-14
]
[
1998
]
[
2010
4
50
50
2453-61
]
[
2018
]
[
2006
307
1
1
91-8
]
[
2006
16
1
1
129-40
]
[
2017
78
141-56
]
[
2010
]