1
by Leo, Ann Mean
Published 2006
2
3
by Ainon Mohd
Published 2005
4
by Ainon Mohd.
Published 2005
5
by Bono de, Edward
Published 2001
6
by De Bono, Edward, 1933-
Published 1990
7
by De Bono, Edward, 1933-
Published 1997
8
by Ainon Mohd, 1950-
Published 1999
9
by De Bono, Edward
Published 1991
10
by LeBoeuf, Michael
Published 1980
11
by De Bono, Edward, 1933-
Published 1982
12
by De Bono, Edward, 1933-
Published 1993
13
by Pink, Daniel H.
Published 2005
14
15
by Kindler, Herb
Published 2002
16
by Yew, Kam Keong
Published 1997
17
18
by Yew, Kam Keong.
Published 2001
19
by Adair, John
Published 1990
20
by De Bono, Edward, 1933-
Published 1967