0121-0807

0121-0807

S0121-08072020000200161

10.18273/revsal.v52n2-2020010

Colombia

00 06 2020

00 06 2020

52 2 161 163

1

2019 8 9 9

2

2016 97

102-162the

3

2018 8 5 5

4

2017 143

14-6

5

2016 36 4 4

583-92

6

2011 139 12 12

1827-34

7

2020 382

727-33

8

2012

9