Hurley, Patrick J., 1883-1963
Wardsworth Cengage Learning, 2012
Buku Teks
Hurley, Patrick J., 1883-1963
Wadsworth, 1984
Buku Teks
Copi, Irving M.
Macmillan, 1961
Buku Teks
Kahane, Howard
1999
Multimedia
Boolos, George
Harvard University Press, 1998
Buku Teks