1390-7697
1390-7697
S1390-76972022000200066
10.26423/rctu.v9i1.679
Ecuador
00
06
2022
00
06
2022
9
1
66
74
[
2019
36
1
1
143-51
]
[
2018
18
14-24
]
[
2016
95
6
6
1428
]
[
2019
266
80-3
]
[
2018
35
1547-9
]
[
2020
13
1
1
1-16
]
[
2021
24
2
2
]
[
2019
]
[
2021
24
2
2
]
[
2014
]
[
2018
29
1
1
132-5
]
[
2015
214
1-2
1-2
96-9
]
[
2009
104
6
6
1425-30
]
[
2015
85
7
7
709-13
]
[
2018
]
[
2020
119
12
12
4113-22
]
[
2020
12
12
]
[
2017
101
6
6
964-72
]
[
2018
19
1
1
1-13
]
[
2013
87
4
4
432-42
]
[
2009
18
1
1
52-9
]
[
2007
93
4
4
889-96
]
[
2019
8
1
1
32
]
[
2020
57
2
2
83
]
[
2012
57
1
1
67-73
]