1
by De Bono, Edward, 1933-
Published 1993
2
by Ainon Mohd, 1950-
Published 1999
3
4
by Ainon Mohd
Published 2005
5
by Ainon Mohd.
Published 2005
6
by Bono de, Edward
Published 2001
7
by De Bono, Edward, 1933-
Published 1990
8
by De Bono, Edward, 1933-
Published 1997
9
by De Bono, Edward, 1933-
Published 1967
10
by Leo, Ann Mean
Published 2006
11
by Pink, Daniel H.
Published 2005
12
13
by Kindler, Herb
Published 2002
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