Heydenreich, Ludwig
Yale University Press, 1996
Buku Teks
Quennell, Peter
New York The Viking Press 1941
Buku Teks
Instituto Poligrafico dello Stato, 1974
Buku Teks
Agoes Ariesmunandar ; Davison, Julian ; Bromer, Bea ; Durmacay, Jacques
Archipelago Press, 1998
Buku Referensi
Presidency of the Council of Ministers of the Republic of Italy, Information Service, 1962
Buku Teks