1
2
by Clines, Raymond H.
Published 2003
3
by Sulaiman Masri
Published 2002
4
by Perry, William G.
Published 1996
5
6
7
by Barkley, Elizabeth F
Published 2005
8
Published 2011
9
by Lindsey Neville
Published 2007
10
by Azirah Hashim
Published 2005
11
by Kuang, Ching Hei
Published 2006