Mckay, Robert A.
The Institute of Pacific Relations, 1929
Buku Teks
Schwind, Joseph J. von
Prentice-Hall, 1980
Buku Teks
Neumann, G. (Gerhard)
Elsevier, 1968
Buku Teks
Universitas Indonesia, 2000
UI - Skripsi (Membership)
Universitas Indonesia, 2000
UI - Skripsi (Membership)