1870-0063
1870-0063
S1870-00632023000300091
10.29092/uacm.v20i53.1032
El Salvador
00
12
2023
00
12
2023
20
53
91
127
[
1998
]
[
1975
]
[
1962
]
[
1960
]
[
1972
37
4
4
696-702
]
[
2001
]
[
2002
]
[
2002
]
[
1991
40-60
]
[
2012
]
[
2007
]
[
2000
78
4
4
434-7
]
[
2011
3
2
2
262-72
]
[
2005
15
6
6
949-73
]
[
1996
]
[
1996
2
2
2
127-58
]
[
1989
235-47
]
[
1979
197-218
]
[
1957
]
[
1997
18
1
1
1-15
]
[
1962
]
[
1952
19
1
1
1-16
]
[
1983
24
24
224-32
]
[
1977
]
[
2022
]