0120-5609

0120-5609

S0120-56092023000100002

10.15446/ing.investig.97521

Chile

Chile

Ecuador

Ecuador

00 04 2023

00 04 2023

43 1 1

2019 11 1 1

15-27

2017

2019

2016

2016 50 4 4

403-12

2020

2017

Instituto Ecuatoriano de Normalización

2020

327-54

2016 147

460-7

2017 19 4 4

405-10

2015 20 1 1

106-16

2017 20 2 2

23-8

2020

1998 14 5 5

457-67

2016 18 4 4

701-14

2020

2019 30 2 2

189-200

2018 2 2 2

72-91