Peter H. W. Sitsen
Buku Teks
Boeke, J.H.
Institute of pacific relations, 1946
Buku Teks
Preger W.
F. W. Cheshire pty. ltd. , 1944
Buku Teks
Pieter Honig, Frans Verdoorn, edited
Board for the Netherlands Indies , 1945
Buku Referensi
Walrec, E.D. van
National countcil for the Netherlands and the Netherlands Indies of the Institute of Pacific Relations, 1935
Buku Teks