2184-7770
2184-7770
S2184-77702021000100032
10.36367/ntqr.6.2021.32-40
London
30
03
2021
30
03
2021
6
32
40
[
2019
42
2
2
139-60
]
[
2004
36
1
1
57-67
]
[
2020
,
Ju
]
[
1993
111-22
]
[
2013
]
[
2013
36
3
3
339-55
]
[
2011
14
4
4
647-73
]
[
2016
19
4
4
535-61
]
[
2014
14
5
5
603-16
]
[
2007
27
1
1
30-5
]
[
2019
67
6
6
1249-64
]
[
2007
8
2
2
151-62
]
[
2006
23
2-3
2-3
341-3
]
[
2020
]
[
2012
]
[
2014
9
1
1
1-3
]
[
2007
]
[
2016
12
2
2
1-15
]
[
2009
]
[
2010
1
896-8
]
[
2004
]
[
2015
14
5
5
1-9
]
[
2020
]
[
2020
]
[
2020
]
[
2015
]
[
2008
9
4
4
399-407
]
[
2003
57
1
1
9-16
]
[
2020
]
[
1991
]
[
2012
6
1
1
54-60
]
[
2016
9
2
2
270-8
]
[
2020
]
[
2010
]
[
1998
2020
]