International encyclopedia of government and politics : volume 1
editor Frank N. Magill
Toppan Company, 1996
Buku Referensi
Internaional Encyclopedia of Government & Politics
S. Chand, 1996
Buku Teks
The Encyclopedia of Malaysia : Government and Politics
Archipelago Press, 2006
Buku Referensi
Encyclopedia of knowledge : volume 1
Grolier Incorporated, 1991
Buku Referensi
Encyclopedia of bioethics : volume 1
Warren Thomas Reich, editor in chief
Simon & Schuster Macmillan, 1995
Buku Referensi