Beaney, William M., author
Prectice-Hall, Inc., 1960
Buku Teks
Murphy, Jefrie G., author
D. Reidel Publishing Company, 1979
Buku Teks
Mason, Alpheus Thomas,1899-1989, author
Prentice-Hall, 1968
Buku Teks
Clarendon Press, 1991
Buku Teks
Mason, Alpheus Thomas,1899-1989, author
Prentice-Hall, 1993
Buku Teks