Long, Peter, author
Routledge, 2001
Buku Teks
Boolos, George, author
Harvard University Press, 1998
Buku Teks
Richards, Tom, author
Addison-Wesley Pub. Co., 1989
Buku Teks
Copi, Irving M., author
Macmillan, 1961
Buku Teks
Copi, Irving M., author
Prentice-Hall, 1995
Buku Teks