1870-0063
1870-0063
S1870-00632022000300439
10.29092/uacm.v19i50.987
Ecuador
00
12
2022
00
12
2022
19
50
439
463
[
2011
]
[
2006
]
[
2010
24
3
3
31-51
]
[
1984
]
[
2016
133
133
13-35
]
[
2017
]
[
2007
23
23
203-22
]
[
1994
66
66
171-80
]
[
2018
]
[
2018
]
[
2018
]
[
2015
]
[
2014
]
[
2011
]
[
2007
]
[
2005
]
[
2004
]
[
1990
]
[
1975
]
[
2017
]
[
2021
48
443-70
]
[
2014
]
[
1933
]
[
1990
]
[
1988
]
[
2001
]