The Encyclopedia of Malaysia : Government and Politics
Archipelago Press, 2006
 Buku Referensi
Lost Times and Untold Tales from The Malay World
edited by Jan Van der Putten, Mary Kilcline Cody
NUS Press, 2009
 Buku Teks
Jawan, Jayum A.
The Ethnic factor in modern in politics: the case of Sarawak, East Malaysia / Jayum A. Jawan
Centre for South-East Asian Studies , 1991
 Buku Teks
Government and politics of Malaysia
edited by Zakaria Haji Ahmad
Oxford University Press, 1987
 Buku Teks
Abdul Razak Baginda
Malaysia in transition : politics and society
Asean Academic Press, 2003
 Buku Teks