Hall, John W., author
University of Michigan Press, 1954
Buku Teks
Tsurumi, Yoshi, author
Praeger, 1978
Buku Teks
Charles E. Tutle Co.Inc, 1959,
Buku Referensi
International Research Center,
Majalah, Jurnal, Buletin
Beaty, Wayne H., editor
McGraw-Hill Publishing Company, 1990
Buku Referensi