1659-1321
1659-1321
S1659-13212017000100015
10.15517/am.v28i1.20814
CO
CO
CO
CO
00
04
2017
00
04
2017
28
1
199
206
[
2006
]
[
2014
52
16-21
]
[
2007
3
289-98
]
[
2008
59
89-113
]
[
2008
46
216-21
]
[
1991
55
15-21
]
[
2009
11-34
]
[
2012
50
447-57
]
[
2010
30
866-75
]
[
2010
210
169-79
]
[
2004
145
257-62
]
[
2011
55
99-104
]
[
2015
]
[
2012
367
547-55
]
[
2014
21
67-74
]
[
2014
119
119-29
]
[
2010
44
427-31
]
[
2005
162
650-67
]
[
2009
29
810-4
]
[
2011
124
85-92
]
[
2004
130
453-9
]
[
2008
52
253-8
]
[
1989
21
151-9
]
[
2001
3
]
[
1987
148
350-82
]
[
2012
169
651-9
]
[
2008
180
240-7
]
[
2005
436
866-70
]
[
2005
132
44-57
]
[
2010
]
[
2014
17
115-21
]
[
2015
201
411-21
]
[
1999
22
1515-26
]
[
2001
46
299-312
]
[
1987
107
591-602
]
[
2002
53
1351-65
]
[
1988
Lagos, NGR
17-23
]