Wagner, Frits A., author
McGraw-Hill, 1959
Buku Referensi
Tara Sosrowardoyo, 1998,
Buku Referensi
The New Zealand Embassy, 1990
Buku Teks
Holt, Claire, author
Cornell University Press, 1967
Buku Teks
edited by Haryati Soebadio
Archipelago Press, 1992
Buku Referensi