1
Published 2010
Book
2
Published 1978
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Journal
8
Published 2008
Book
9
by Gordon, Neil F.
Published 1993
Book
11
by Bowling, Stella.
Published 2001
Book
14
Published 2007
Book
15
Published 2015
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Electronic eBook
16
Published 2008
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Electronic eBook
17
Published 2012
Book
18
Published 2006
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Electronic eBook
19
Published 2014
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Electronic eBook