Boase, Alan
University Paperbacks, 1964
Buku Teks
Roman, Paul, author
Pergamon Press, 1975
Buku Teks
Tokyo Tokyo University of Foreign Studies 2005
Buku Referensi
Larcombe, Frederick Arthur, author
Sydney University Press, 1973
Buku Teks
Kim, Tae-kwan, author
Elex Media Komputindo, 2013
Buku Teks