Cather, Willa, 1873-1947
Vintage Books, 1992
Buku Teks
Cather, Willa, 1873-1947
A Signet Classic, 1988
Buku Teks
Palmer, Vance
Melbourne University Press, 1940
Buku Teks
Gor`kiy, Aleksey Maksimovich
Foreign Languages Publishing, [date of publication not identified]
Buku Teks
Phaidon Press, 1945
Buku Referensi