1
by Ziglar, Zig
Published 1985
2
by Moore, Diane
Published 2005
3
4
by Hor, Jennifer
Published 2006
5
by Kraehmer, Steffen T.
Published 1990
6
by Campion, Mukti Jain.
Published 1993
7
by Rosemond, John
Published 2005
8
by Ladd, Karol
Published 2001
9
10
by Roehlkepartain, Jolene L.
Published 2006
11
by Fuller, Cheri.
Published 1998
12
by Kuyper, Vicki
Published 2006
13
by Scott-Wright, Alison
Published 2010
14
by Campbell, Rose
Published 2005
15
by Jamilah Samian
Published 2009
16
17
18
19
Published 1987
20
by Hendrix, Harville
Published 1997