Terry, Charles, author
Kondansha International, 1970
Buku Teks
Seike, Kiyosi, author
Kondansha International, 1970
Buku Teks
Engel, Heinrich, author
Charles E. Tuttle, 1983
Buku Teks
Engel, Heino, author
Tuttle Publishing, 1985
Buku Teks
Kawakita, Michiaki, author
Kodansha International , 1968
Buku Referensi