1
Published 1990
2
3
by Park, Chris
Published 2008
4
by Wright, Richard T.
Published 2005
5
6
by Collin, P.H.
Published 2004
7
by Azlinda Mohd Masri
Published 2007
8
9
Published 1994
10
11
by Brown, Paul
Published 2006
12
13
by Martin, Fred.
Published 1996
14
15
by Withgott, Jay, Laposata, Matthew
Published 2014
16
by Morris, Neil
Published 2008
17
18
by Kaufmann, Robert K.
Published 2008
19
Published 2009
20
by Ammar Khalis
Published 2021