Herrick, Christopher, author
Longman, 2003
Buku Teks
Wesson, Robert G., author
Houghton Miffiln, 1977
Buku Teks
edited by Eugene R. Wittkopt
Martin Press, 1994
Buku Teks
edited by Ernest R. May
George-Braziller, 1963
Buku Teks
Millard, Thomas F., author
Century, 1916
Buku Teks