1
2
by Carlson
Published 1998
3
by Thong Chun Fat
Published 2013
4
by Colquitt
Published 2009
5
by Colquitt
Published 2015
6
by Hughes
Published 2004
7
8
9
by Moss
Published 2009
10
by Hubbard
Published 2007
11
by Reinhold
Published 2001
12
by Hubbard, L. Ron
Published 2009