Times Books, 1991
Buku Referensi
Beardsley, Charles
Charles E.Tuttle, 1967
Buku Teks
Petrov, Vladimir, author
American Institute fo Public Research, 1975
Buku Teks
edited by Mary S. Zurbuchen
University of Washington Press, 2005
Buku Teks
Ishak Yussof, editor
Malaysian Strategic Research Centre, 2009
Buku Teks