0186-7210
0186-7210
S0186-72102006000300515
10.24201/edu.v21i3.1241
Mexico
Mexico
00
12
2006
00
12
2006
21
3
515
546
[
1977
]
[
2002
]
[
2001
2
1
1
1-44
]
[
1978
]
[
2003
85
149-67
]
[
2005
]
[
2001
]
[
1977
]
[
2005
227-58
]
[
2005
84
2
2
733-57
]
[
2000
]
[
2005
23
1 (67)
1 (67)
43-74
]
[
2002
]
[
1984
]
[
2003
16
16
]