6.1

7.4

3.10

2.6

6.8

5.4

Volume 11, Issue 3

3.6

Volume 12, Issue 4

Volume 8, Issue 7

Volume 10, Issue 2

1.6

5.3

2.2

Volume 8, Issue 6

Volume 7, Issue 1

Volume 7, Issue 10

Vol 7, Issue 3

Vol. 10, Issue 4

Volume 11, Issue 2