1900-9607
1900-9607
S1900-96072019000100057
10.21615/cesmvz.14.1.5
Ecuador
Peru
00
04
2019
00
04
2019
14
1
57
69
[
2003
133
5
5
1517S-20S
]
[
1973
37
2
2
501-5
]
[
1996
51
1
1
43-54
]
[
2007
85
5
5
1177-83
]
[
1996
74
11
11
2711-8
]
[
2000
78
1
1
100-5
]
[
2004
82
5
5
1343-58
]
[
2011
142
3
3
471-80
]
[
2011
87
2
2
95-100
]
[
2012
142
8
8
1410-6
]
[
2012
114
47-54
]
[
2014
5
1
1
46
]
[
1973
179
4073
4073
588-90
]
[
2016
211
18-30
]
[
2008
151
4
4
361-72
]
[
2006
63
1
1
52-9
]
[
1957
95
4
4
617-20
]
[
1957
95
4
4
621-5
]
[
2011
141
9
9
1605-10
]
[
2001
131
6
6
1798-802
]
[
1963
2
5
5
326-30
]
[
1972
36
4
4
371
]
[
1972
102
3
3
435-42
]
[
1968
46
6
6
853-8
]
[
1990
24
2-3
2-3
163-71
]
[
1976
106
7
7
892-904
]
[
1987
62
1
1
55-60
]
[
1999
274
8
8
4924-33
]
[
2018
238
73-83
]
[
National Research Council
2012
Eleven revised edition
]
[
2017
Cuarta edición
]
[
1989
70-3
]
[
1995
]
[
1996
74
12
12
2967-74
]
[
2014
92
1
1
182-8
]
[
1984
58
2
2
346-50
]
[
2010
]
[
2004
]
[
2006
84
7
7
1729-33
]
[
2016
221
111-23
]
[
2008
2
6
6
859-66
]
[
2008
77
4
4
515-21
]
[
2001
79
4
4
956-66
]
[
2010
88
2
2
626-37
]
[
1979
59
1
1
67-75
]
[
2016
221
101-10
]
[
2014
92
12
12
5540-50
]
[
2001
79
4
4
942-8
]
[
2018
]
[
1984
59
3
3
733-7
]