Preller, Gustav S.
Bepk, 1937
Buku Teks
Italiaander, Rolf
Prentice-Hall, 1961
Buku Teks
Hatch, John, author
Frederick A. Praeger, 1962
Buku Teks
edited by S.L. Poplai
Asia Publishing House, 1955
Buku Teks
Asian Relations Organization; edited by S.L. Poplai
Asia Publishing House, 1955
Buku Teks