The Japan Foundation, 1997
Buku Referensi
Murdoch, James
Routledge and Kegan Paul, 1949
Buku Teks
Maraini, Fosco
Kodansha International, 1976
Buku Teks
Kaplan, David E.
University of California Press , 2003
Buku Teks
Bryan, J. Ingram
Thornton Butterworth, 1929
Koleksi Publik