Farwel, Byron
Henry Holt and Co, 1957
Buku Teks
Swan, Michael, author
Longmans, 1950
Buku Teks
Adams, Henry
Houghton Miffiln, 1918
Buku Teks
Cameron, J.M., author
British Council, 1884
Buku Teks
edited by Carl Bode
Johns Hopkins University Press, 1974
Buku Teks