1665-6423
1665-6423
S1665-64232023000400542
10.22201/icat.24486736e.2023.21.4.1908
Rwanda
Singapore
Singapore
00
00
2023
00
00
2023
21
4
542
551
[
2003
]
[
2004
15
2
2
69-76
]
[
2005
16
6
6
365-73
]
[
1996
35
4
4
365-70
]
[
1999
38
2
2
149-56
]
[
2003
14
4
4
42-3
]
[
2004
3
3
3
17-24
]
[
2007
2007
488
488
24-5
]
[
2008
41
7
7
208-12
]
[
2002
12
5-6
5-6
411-20
]
[
2014
1-9
]
[
2017
]
[
1994
5
4
4
303-8
]
[
1999
38
4
4
303-10
]
[
2011
26
3
3
225-35
]
[
2010
13-5
]
[
2005
]
[
2001
12
1
1
65-73
]
[
2006
17
6
6
349-58
]
[
2003
14
4
4
44-5
]
[
2008
24
4
4
559-75
]
[
2005
7
1-4
]
[
2013
1-8
]
[
2010
21
4
4
504-10
]