edited by Arthur C. Giese, John S. Pearse and Vicki B. Pearse
Boxwood Press, 1991
Buku Teks
edited by Arthur C. Giese, John S. Pearse and Vicki B. Pearse
Blackwell Scientific , 1987
Buku Teks
Strathmann, Megumi F., author
University of Washington Press, 1992
Buku Teks
Ferguson, John Alexander, author
National Library of Australia, 1977
Buku Referensi
Toynbee, Arnold J., author
Oxford University Press , 1948
Buku Referensi