Mueller, Gerhard G., author
Irwin, 1991
Buku Teks
Nobes, Christopher, author
Prentice-Hall, 1998
Buku Teks
edited by Christopher Nobes and Robert Parker
St. Martin`s Press, 1985
Buku Teks
edited by Christopher Nobes and Robert Parker
Prentice-Hall, 2004
Buku Teks
edited by Christopher Nobes and Robert Parker
Prentice-Hall, 1991
Buku Teks