2007-8196
2007-8196
S2007-81962021000200079
10.36790/epistemus.v15i31.179
Mexico
Mexico
Mexico
00
12
2021
00
12
2021
15
31
79
86
[
2019
]
[
2008
]
[
2012
16
2
2
1-21
]
[
2004
22
1
1
233-44
]
[
1955
281-302
]
[
2003
9
1
1
67-90
]
[
2004
8
24
24
34-40
]
[
2004
]
[
1997
]
[
2016
10
1
1
52-72
]
[
2020
09
E35
E35
16-27
]
[
2019
15
29
29
113-9
]
[
2010
]
[
1975
]
[
2015
]
[
2005
34
4
4
572-80
]
[
2021
]
[
1993
53
643-50
]
[
2003
80
99-103
]
[
UNESCO
1975
]
[
UNESCO
1987
]
[
UNICEF
2021
]