0120-5307

0120-5307

S0120-53072021000100009

10.17533/udea.iee.v39n1e09

Colombia

Colombia

Colombia

Colombia

00 04 2021

00 04 2021

39 1

1

2013 20

33-9

2

2017 5

e1221-34

3

2017 5

e888-97

4

Instituto Nacional para Ciegos 2020

5

Organización Mundial de la Salud 2018

6

2012 7

7

2005 7

130-44

8

2020 5

9

2020 19 suppl 1 suppl 1

10

2020 68

1367

11

2020

12

1987

13

2010 4

101-24

14

World Blind Union 2020

15

CEPAL 2020

16

2012 1st Ed

17

2020 9 2 2

204-11