Christie, Clive J., author
Institute of Southeast Asian Studies , 1996
Buku Teks
Romein, Jan, author
University of California Press, 1962
Buku Teks
Bastin, John, author
Prentice Hall of Australia, 1977
Buku Teks
Barck, Oscar Theodore, Jr., 1902-1993, author
Macmillan, 1965
Buku Teks
Stearns, Peter N., author
Macmillan, 1967
Buku Teks