2215-2636
2215-2636
S2215-26362018000100261
10.15517/rk.v42i1.33568
Costa Rica
00
06
2018
00
06
2018
42
1
261
269
[
1992
9-20
]
[
1981
]
[
2001
34
3
3
434-52
]
[
2001
35
4
4
599-613
]
[
2004
]
[
2006
]
[
1992
]
[
1997
]
[
2013
]
[
1988
31
1
1
80-97
]
[
1990
39-50
]
[
1977
11
1
1
20-5
]
[
2000
59-116
]