1
by Walker, David 1945-
Published 1999
Book
2
Book
4
Published 2006
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Electronic
5
by Buckley, Roger, 1944-
Published 2002
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Electronic
7
by Wesley, Michael, 1968-
Published 2011
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Electronic
8
Published 2003
Book
9
Published 1999
Book
10
Published 1975
Book
11
Published 2003
Book
12
Published 2005
Book
14
Published 1971
Book
15
Published 1997
Book
17
Published 2004
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Electronic
18
by Yeo, Lay Hwee.
Published 2003
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Electronic