1390-7697
1390-7697
S1390-76972022000100097
https://doi.org/10.26423/rctu.v9i2.672
Ecuador
00
12
2022
00
12
2022
9
2
97
109
[
2019
43-53
]
[
2022
6
3
3
3193-204
]
[
2009
8
6
6
455-67
]
[
2018
12
1
1
205-21
]
[
]
[
2015
28
5
5
497-8
]
[
]
[
2022
27
52
52
35-56
]
[
2004
122
4401
4401
]
[
2018
12
4
4
52-65
]
[
2017
1
1
1
1-12
]
[
2014
1-9
]
[
2016
10
2
2
1-12
]
[
2015
6
1
1
7-13
]
[
Serie ”27000” ISO
2018
]
[
2013
]
[
2004
2004
1
1
10-3
]
[
2016
1
1
1
72-5
]
[
2019
]
[
2017
1
1
1
26-34
]
[
2018
13
1
1
]
[
2017
22
22
73-88
]
[
2020
41
1
1
1-12
]
[
2006
3
1
1
62-9
]
[
2017
39
9
9
17
]