Magee, John H.
Richard D. Irwin, 1951
Buku Teks
Barton, John H.
Stanford University Press, 1981
Buku Teks
Cavaliero, Roderick, author
Tauris Parke Paperbacks, 2009
Buku Teks
Klaus, Marshall H.
Mosby Comp., 1982
Buku Teks
Kennedy, John H., author
Saunders College, 1990
Buku Teks