Foreman, John
T. Fisher Unwin , 1906
Buku Teks
Buck, Carl Darling, author
Chicago, Chicago University Press 1949
Buku Referensi
Ingpen, Robert, author
Dragon's World, 1993
Buku Referensi
Worsley, Peter, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2020
Artikel Jurnal
Armour, Richard
McGraw-Hill Book, 1966
Buku Teks