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