1390-6542
1390-6542
S1390-65422023000100018
10.29019/enfoqueute.890
Ecuador
Ecuador
Ecuador
Ecuador
00
03
2023
00
03
2023
14
1
18
32
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1984
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2005
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[
2021
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2019
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2013
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2017
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2020
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2002
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2020
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2017
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2017
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ISTA
2003
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2019
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2022
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2015
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2018
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1997
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2018
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2016
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2022
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2020
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2000
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2019
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2021
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2019
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2022
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2013
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2021
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2016
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2019
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2018
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2010
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2016
]