Polak, J.J., author
Netherlands and Netherlands Indies Council of the Institute of Pacific Relations , 1939
Buku Teks
Boeke, J.H., author
Institute of pacific relations, 1946
Buku Teks
Pieter Honig, Frans Verdoorn, edited
Board for the Netherlands Indies , 1945
Buku Referensi
Preger W.
F. W. Cheshire pty. ltd. , 1944
Buku Teks
Peter H. W. Sitsen
Buku Teks