1
2
Published 2003
3
by Elek, Andrew.
Published 2008
4
5
Published 2005
6
by Dutta, Manoranjan
Published 1999
7
by Nesadurai, Helen E.S.
Published 2003
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9
by Gruhn, Isebill V.
Published 1979
10
by Frost, Ellen L.
Published 2008
11
12
13
by Dent, Christopher M.
Published 1997
14
Published 2004
15
Published 2003
16
17
by Sridharan, Kripa, 1949-
Published 2007
18
Published 2010
19
Published 2004