1390-6542
1390-6542
S1390-65422020000400057
10.29019/enfoqueute.v11n4.533
Ecuador
Ecuador
Ecuador
Ecuador
00
12
2020
00
12
2020
11
4
57
70
[
Azoulay A
2001
]
[
Burlingame G
2017
]
[
Dietrich y Burlingame
]
[
Dietrich y Burlingame
]
[
Dinelli E
]
[
2019
]
[
Harmon D
]
[
2013
]
[
INEN
2020
]
[
INEN
2008
]
[
INEN ISO
2014
]
[
López et al
2017
]
[
NTE INEN
2016
]
[
2006
]
[
]
[
Platikanov S
]
[
Rahman I
2017
]
[
2013
]
[
2002
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
Standard Methods
2012
]
[
USEPA
2020
]
[
2003
]
[
2017
]
[
Wang A
]