1
by Alam
Published 2007
2
3
by lamb
Published 1991
4
5
by Ozcan
Published 1997
6
by Misra
Published 1990
7
8
by Basrur
Published 2008
9
by Wink
Published 1991
10
by Falk
Published 2006
11
by Shakeb
Published 1990
12
by Allchin, Bridget
Published 1982
13
by Crossette
Published 1993
14
by Powell
Published 1993
15
by Khan
Published 1994
16
Published 1994
17
by Schofield
Published 2000
18
by Bagchi
Published 1972
19
by Byktay
Published 1941
20
by Smith, -1901.
Published 1894