1
by Anwar Ibrahim
Published 1997
2
by Chaudhuri
Published 1990
3
by Mansour
Published 1992
4
by McWilliams
Published 1993
5
by Brill
Published 1989
6
by Field
Published 1994
7
by Gullick
Published 1987
8
by Li
Published 1959
9
Published 1989
10
by Freund
Published 1984
11
by Richards
Published 1993
12
Published 1992
13
14
by Abu Talib Ahmad
Published 2000
15
16
Published 2000
17
Published 1997
18
by Shamsul Amri Baharuddin
Published 1993
19
by Mohd Taib Osman
Published 2004
20
by Muhammad Idris Saleh
Published 1994