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