1
Published 1980
Book
2
Published 1989
Book
3
Published 2010
Book
4
Published 2001
Book
5
Published 1993
Book
6
Published 2001
Book
7
Published 1997
Book
8
Published 1992
Book
9
Published 2007
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Electronic
10
Published 2005
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Electronic
11
Published 2011
Book
14
Published 2009
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Electronic
15
Published 2010
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Electronic
16
Published 2011
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Electronic
17
Published 2000
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Electronic
19
Published 2005
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Electronic