Tsurumi, Yoshi
Praeger, 1978
Buku Teks
Charles E. Tutle Co.Inc, 1959,
Buku Referensi
International Research Center,
Majalah, Jurnal, Buletin
Beaty, Wayne H.
McGraw-Hill Publishing Company, 1990
Buku Referensi
Suzuki, Takao
Kodansha International, 1978
Buku Teks