Emmerson, John K., author
Charles E. Tuttle Company, 1976
Buku Teks
Theresia, author
Universitas Indonesia, 2009
UI - Skripsi (Open)
edited by Ernest W. Lefever
Frederick A. Praeger, 1962
Buku Teks
Mahathir bin Mohamad, 1925-, author
Federal Publications SDW BHD, 1981
Buku Teks
edited by Philip M. Hauser
Prentice-Hall, 1963
Buku Teks