1
2
by Helmering, Doris Wild
Published 2005
3
by GLADWELL, MALCOLM
Published 2014
4
5
by Davidson, Jeff
Published 2003
6
by Abraham, Laurie
Published 2010
7
Published 2015
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9
by Liu, Zu Mian
Published 2002
10
by Vaughan, Diane.
Published 1988
11
12
13
by Renshon, Stanley A
Published 2005
14
by Holmes, Ann Marie
Published 2006
15
by Dishy, Victor.
Published 1990
16
by Ford, Clyde W.
Published 1993
17
by Cheung, Theresa
Published 2008
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19
by McCallister, Linda.
Published 1994
20