2007-7890

2007-7890

S2007-78902021000500054

10.46377/dilemas.v8i.2736

Ecuador

Ecuador

Ecuador

00 00 2021

00 00 2021

8 spe3

1.

American Water Works Association 2008 36

2.

2006 1 4 4

1-8

3.

2021

4.

2001 17 79 79

13-22

5.

2003

6.

2018

7.

2013

8.

2017

9.

2002

280-90

10.

2007 21 9 9

45-7

11.

2003 7

12.

2008 26 2 2

347-59

13.

2015

14.

2017 14 1 1

85-96

15.

2008

16.

UNESCO 2020

17.

2011

1.

2014 89

318-25

2.

2015 41 4 4

8-9