0872-1904
0872-1904
S0872-19042021000400253
10.4152/pea.2021390403
Morocco
30
08
2021
30
08
2021
39
4
253
264
[
2006
58
28-31
]
[
1979
126
360
]
[
1997
67
135-50
]
[
2007
52
2146
]
[
1991
33
213-20
]
[
2011
42
784
]
[
2009
194
1120
]
[
2010
61
51
]
[
2001
95
224
]
[
1997
67
257
]
[
2016
34
383
]
[
2018
36
133
]
[
1990
24
159
]
[
1995
46
176
]
[
2006
51
2942
]
[
2013
721
104
]
[
2008
11
362
]
[
2004
34
833
]
[
1975
26
10
]
[
2008
50
1035
]
[
2009
13
1279
]
[
2010
195
6924
]
[
2010
40
739
]