1659-4266
1659-4266
S1659-42662017000200273
10.22458/urj.v9i2.1900
Costa Rica
Costa Rica
Costa Rica
00
12
2017
00
12
2017
9
2
273
279
[
ANUIES
2004
]
[
2017
]
[
2017
]
[
2017
]
[
2008
20
20
]
[
2014
]
[
2016
31
2
2
]
[
2013
42
5
5
62-6
]
[
2003
]
[
2016
20
2
2
1-26
]
[
2012
9
3
3
85
]
[
2007
1
1
1
91-108
]
[
2004
49
49
61-78
]
[
2007
5
13
13
783-804
]
[
UNED
2004
]
[
2004
Segunda edición
]