2218-3620
2218-3620
S2218-36202020000100330
Ecuador
00
02
2020
00
02
2020
12
1
330
336
[
2017
2017
]
[
2017
2017
]
[
2017
2017
]
[
2017
2017
]
[
2018
39
19
19
]
[
2006
22
3
3
]
[
2016
]
[
2017
2017
]
[
International Organization for Standardization
2009
]
[
2017
Colombia
]
[
2017
Colombia
]
[
2003
]
[
1997
]
[
2007
]