1409-3871
1409-3871
S1409-38712019000200099
10.15517/lank.v19i2.38773
Ecuador
Ecuador
00
08
2019
00
08
2019
19
2
99
105
[
2018
343
1
1
75-81
]
[
2018
18
3
3
183-8
]
[
2005
95
5
5
764-72
]
[
2004
]
[
2016
]
[
1996
61
1-255
]
[
2011
88
13-405
]
[
2012
123
1-296
]
[
2015
201
50-62
]
[
2018
375
3
3
221-8
]