Hayes, Carlton J. H.
Macmillan,
Buku Teks
edited by Norman F. Cantor and Samuel Berner
Thomas Y. Crowell, 1970
Buku Teks
White, James L.
Washington Square Press, 1966
Buku Teks
Gallagher, Michael
McGraw-Hill, 2011
Buku Teks
Hazen, Charles Downer
Buku Teks