Buchanan, Albert Russell, author
Harper & Row, 1964
Buku Teks
White, John Baker, author
Thomas Y. Crowell Company, 1955
Buku Teks
Kahin, Audrey R., author
Grafiti , 1997
Buku Teks
Mock, James R., author
Princeton University Press, 1941
Buku Teks
Lattimore, Owen, 1900-, author
Claremont Colleges, 1943
Buku Teks