1390-6542
1390-6542
S1390-65422019000200017
10.29019/enfoqueute.v10n2.379
Ecuador
00
06
2019
00
06
2019
10
2
17
27
[
2019
4003-4012.
]
[
2014
]
[
2019
154-74
]
[
Geddes.
1981
]
[
2018
1-6
]
[
2014
]
[
2014
213-34
]
[
Larminie.
2012
]
[
Lorico.
2011
75-83
]
[
Mathar.
2012
57-68
]
[
2011
22-7
]
[
2012
27-36
]
[
2018
1819-26
]
[
2016
111-49
]
[
2015
8
]
[
Miśkiewicz.
2017
161-72
]
[
2013
2
]
[
2015
]
[
2014
51-62
]
[
2016
937-49
]
[
2014
]
[
2017
]