Long, Norman, author
Tavistock Publication, 1980
Buku Teks
Loomis, Charles P.
Prentice Hall Inc., 1957
Buku Teks
Hoggart, Keith, author
Routledge, 2016
Buku Teks
Nelson, Lowry, author
American Book, 1955
Buku Teks
Loomis, Charles P., author
Prentice-Hall, 1957
Buku Teks