2215-2466
2215-2466
S2215-24662018000200137
10.22458/rr.v8i2.2117
Costa Rica
00
12
2018
00
12
2018
8
2
137
168
[
2012
45
35-50
]
[
1996
]
[
1957
]
[
1830
]
[
1995
53
27-33
]
[
2000
1
1
1
93-105
]
[
2014
]
[
1994
]
[
2009
]
[
1957
]
[
2008
]
[
1993
]
[
2004
7
22
22
55-63
]
[
2009
18
11-167
]
[
2000
1
2-3
2-3
125-38
]
[
1977
]
[
1981
]
[
2004
]
[
2006
]