0186-7210
0186-7210
S0186-72102006000300731
10.24201/edu.v21i3.1246
Mexico
00
12
2006
00
12
2006
21
3
731
748
[
1997
35
35
19-33
]
[
1991
]
[
2003
]
[
2000
]
[
2000
Zacatecas
]
[
1995
11-9
]
[
2000
147-66
]
[
1999
]
[
1992
]
[
2002
Tapachula, Chiapas
]
[
2004
Cuernavaca, Morelos
]
[
1999
]
[
1995
]
[
2000
50
4
4
]
[
]
[
2002
]