1
by Bryman
Published 2009
2
by O'Leary
Published 2008
3
by Taylor
Published 1999
4
by Norusis
Published 2008
5
by Coakes
Published 2010
6
by Field
Published 2009
7
by Harrison
Published 2007
8
by Myers
Published 2005
9
by Norusis
Published 2010
10
by O'Leary
Published 2011
11
by O'Leary
Published 2011
12
by Felke-Morris
Published 2011
13
by Fernandez
Published 2010
14
by Green
Published 2011
15
by BONNARENS
Published 1992
16
by Schwartz
Published 2008
17
Published 2000
18
by Norusis
Published 2008
19
by Albright
Published 2011
20
by O'Leary
Published 2011