Jolley, Elizabeth
Viking, 1995
Buku Teks
Raper, Arthur F
Cornell University Press, 1970
Buku Teks
Savage, Joanne
Oxford University Press, 2016
eBooks
Archer, Jeffrey
HarperCollins, 1993
Buku Teks
Lubeck, Steven G.
Aldine Publishing Company, 1971
Buku Teks