Drotning, Phillip T., author
Doubleday, 1968
Buku Teks
Quarles, Benjamin, author
Macmillan, 1969
Buku Teks
Cassara, Ernestt, author
Gale Research Coompany, 1977
Buku Teks
Hughes, Langston
Prentice-Hall, 1967
Buku Teks
Stowe, Harriet Beecher, author
Wordsworth Classics, 1999
Buku Teks