Earl, David Magarey
University of Washington Press, 1964
Buku Teks
University of Tokyo Press , 1986
Buku Teks
Nakamura, Mitsuo, author
Kokusai Bunka Shinkokai, 1966
Buku Teks
Imahashi, Riko, 1964-, author
International House of Japan, 2016
Buku Teks
Gordon, Andrew, author
Oxford University Press, 2003
Buku Teks