2218-3620

2218-3620

S2218-36202021000100137

Ecuador

Cuba

Ecuador

00 02 2021

00 02 2021

13 1 137 149

2017 46

15-27

2017

2020 41 18 18

25-35

2019 15 70 70

193-202

2020 16 77 77

65-73

2012 4 2 2

2016

Ecuador. Ministerio de Educación 2010

2018 44

1-16

2019 11 3 3

341-54

2020 12 5 5

492-9

2014 6ta

2018

2019

2016 20 2 2

452-72

2020 3 2 2

42-50

2018

1996

765-83

2018

Unesco 2015