Nakane, Chie, author
University of California Press, 1970
Buku Teks
Rotherham, L., author
Clarendon Press, 1984
Buku Teks
Borrie, Gordon, author
Penguin Books, 1976
Buku Teks
Schneider, Ben Ross, Jr., author
Addison-Wesley, 1974
Buku Teks
McNeill, Patrick, author
Macmillan, 1991
Buku Teks