1
by Hansen
Published 1994
2
by Hubbard
Published 2007
3
by de Bono, 1933-
Published 1993
4
by Danial Zainal Abidin
Published 2006
5
by Ong
Published 1998
6
by Abdul Razak bin Abdullah
Published 2005
7
by Roazzi
Published 2004
8
9
by Molden
Published 2002