1
by Maznah Hamid, Datuk, 1955-
Published 2002
2
by Ziglar, Zig.
Published 1993
3
by Khoo, Kheng-Hor, 1956-
Published 2006
4
by Robert, Gerry
Published 1999
5
by Ziglar, Zig
Published 1997
6
by Koran, Al
Published 1972
7
by Mohan, V.
Published 2002
8
by De Bono, Edward, 1933-
Published 1986
9
by Sherina
Published 2004
10
11
12
by Najmil Faiz Mohamed Aris
Published 2000
13
14
by Grossmann, Gustav, 1893-
Published 1957
15
16
by Farson, Richard Evans, 1926-
Published 2002
17
by Robbins, Anthony.
Published 1988
18
19
20
Published 2007