Stchertsky, F.Th., author
Dover, 1930
Buku Teks
Stchertsky, F.Th., author
Dover, 1930
Buku Teks
Boolos, George, author
Harvard University Press, 1998
Buku Teks
Conze, Edward, 1904-1979, author
George Allen and Unwin, 1956
Buku Teks
Copi, Irving M., author
Macmillan, 1961
Buku Teks