Buku Teks
Edited by Laura S. Etheredge
Britannica Educational Pub. in association with Rosen Educational Services, 2010
Buku Teks
Lewycka, Marina
Penguin Books, 2006
Buku Teks
Scott, Ernest
Oxford University Press, 1953
Buku Teks
Latourette, Kenneth Scott
Macmillan, 1957
Buku Teks