Homma, Kenshiro, author
Japan Science Press, 1980
Buku Teks
Robertson, Ben, author
University of queensland press, 2010
Buku Referensi
Hall, John W., author
University of Michigan Press, 1954
Buku Teks
Kosaka, Masataka
Kodansha International , 1972
Buku Teks
Nahm, Andrew C., author
Hollym, 1990
Buku Teks