1657-8961
1657-8961
S1657-89612019000200023
10.11144/javerianacali.ppsi17-2.gssp
USA
USA
00
12
2019
00
12
2019
17
2
23
35
[
2010
39
6
6
658-69
]
[
1985
53
1
1
80-7
]
[
2001
36
3
3
374-99
]
[
1992
51-73
]
[
2009
Vol. 2
]
[
1996
42
1
1
125-47
]
[
1990
17-59
]
[
1992
216-38
]
[
1994
115
1
1
74-101
]
[
1981
5
3
3
309-12
]
[
2000
46
4
4
672-92
]
[
1973
]
[
1995
66
4
4
1179-97
]
[
1998
7
3
3
321-39
]
[
1991
3rd ed.
]
[
1997
43
2
2
235-54
]
[
1996
66
4
4
459-506
]
[
1995
5
1
1
55-70
]
[
2001
21
4
4
423-49
]
[
2004
42
1
1
3-21
]
[
2011
11
7
7
]
[
1981
138
1
1
37-48
]
[
2006
35
6
6
881
]
[
1991
23
4
4
416-41
]
[
2018
88
3
3
246-52
]
[
1988
59
1
1
107-20
]
[
1992
63
6
6
1305-20
]
[
1992
48
]
[
1982
50
2
2
226-33
]
[
1999
35
1
1
69-79
]
[
1981
242-72
]
[
1987
58
2
2
283-305
]
[
1989
]
[
2009
]
[
1988
24
4
4
580-8
]
[
2007
36
6
6
775-86
]
[
2018
53
5
5
437-51
]
[
2012
24
2
2
293-300
]
[
2009
24
12
12
1996-2017
]