1
Published 2010
2
by Barnes
Published 1994
3
by Hedge
Published 2000
4
5
by El-Shamy
Published 2004
6
by Hanson
Published 2005
7
by Bozarth
Published 2008
8
by Horton
Published 2012
9
by Harrison
Published 2010
10
by ORRIDGE
Published 1999
11
by HALL
Published 1997
12
by GEE
Published 2000
13
by GOLDSTEIN
Published 1992
14
Published 1994
15
by MIRZA S. Saiyadain
Published 1995
16
17
by HARSHMAN
Published 1996
18
by KIRKPATRICK
Published 1998
19
by Kinlaw
Published 1996
20
by RASMUSSEN
Published 1996