0186-7210
0186-7210
S0186-72102008000200375
10.24201/edu.v23i2.1315
Mexico
00
08
2008
00
08
2008
23
2
375
413
[
1988
]
[
2005
76
4
4
401-23
]
[
2006
42
1
1
90-123
]
[
1999
18
3
3
201-17
]
[
1997
41
3
3
360-73
]
[
1999
]
[
2001
7
20
20
223-53
]
[
1996
48
1
1
55-66
]
[
1971
4
3
3
267-84
]
[
1981
]
[
1981
]
[
1997
59
2
2
131-60
]
[
2002
31
31
9-24
]
[
2006
43
11
11
1943-69
]
[
1998
35
3
3
385-97
]
[
2003
36
36
161-210
]
[
1986
147-51
]
[
1993
17
3
3
384-403
]
[
2005
45
45
71-106
]
[
1998
35
10
10
1791-813
]
[
2005
46
46
79-108
]
[
2006
43
1
1
213-36
]
[
2005
46
46
79-108
]
[
2003
37
3
3
501-18
]
[
2006
43
8
8
1341-64
]
[
1990
191
265-97
]
[
1999
2
2
107-29
]
[
1997
]
[
1968
82
2
2
175-97
]
[
1992
3
2
2
371-460
]
[
1990
92-134
]
[
1989
501
1
1
26-47
]
[
2002
17
2
2
173-97
]
[
1994
15-112
]
[
2004
38
2
2
518-46
]
[
2003
18
3
3
305-26
]
[
2001
]
[
1997
33
2
2
228-64
]
[
1991
6
6
24-9
]
[
1993
]
[
1990
25
4
4
640-58
]
[
1950
37
37
17-23
]
[
1998
35
10
10
1869-88
]
[
2002
17
3
3
487-503
]
[
2001
28
28
181-97
]
[
1998
13
3
3
301-11
]
[
2006
21
3
3
271-80
]
[
2002
31
2
2
197-229
]
[
2005
29
1
1
110-24
]
[
1995
6
6
231-69
]
[
2001
19
19
13-31
]
[
1991
]
[
2004
11
31
31
55-84
]
[
1998
]
[
1999
14
5
5
641-57
]
[
2003
4
14
14
317-40
]
[
2006
21
1
1
83-122
]
[
2007
16
2
2
381-420
]
[
1989
501
8-25
]
[
2006
96
2
2
390-414
]
[
1999
49
1
1
43-51
]
[
2005
57
2
2
285-94
]