0034-7744
0034-7744
S0034-77442021000100001
10.15517/rbt.v69i1.42021
Pakistan
China
Turkey
Pakistan
Pakistan
Bulgaria
00
03
2021
00
03
2021
69
1
1
11
[
2017
13
1
1
1-15
]
[
2013
9
1
1
2
]
[
2015
170
275-83
]
[
1996
]
[
1988
78
1
1
29-56
]
[
2008
45
21
21
20
]
[
1965
]
[
2016
261
3
3
201-17
]
[
2009
11
535-41
]
[
2015
]
[
2008
118
2
2
213-9
]
[
2000
191-207
]
[
2015
11
8
8
2377-89
]
[
2006
108
1
1
152-4
]
[
2005
]
[
2009
29
2
2
75-80
]
[
2011
]
[
2007
3
1-22
]
[
2019
29
6
6
785-92
]
[
2001
78
2-3
2-3
171-91
]
[
2004
]
[
2004
2
4
4
269-73
]
[
2001
]
[
2014
21
6
6
375-86
]
[
2001
25
1
1
71-6
]
[
1993
47
1
1
15-32
]
[
2018
36
3
3
310-9
]
[
2003
]
[
1995
15
1
1
3-18
]
[
2010
4
3
3
161-76
]
[
2001
]
[
2003
88
2-3
2-3
279-86
]
[
1986
]
[
2006
152
1
1
27-71
]
[
2007
]
[
2016
6
1
1
118-25
]
[
2007
112
1
1
55-70
]
[
2010
12
3
3
353-8
]