Ketchum, Richard M., author
American Heritage Publishing, 1960
Buku Teks
Cleary, Thomas, author
Elex Media Komputindo, 2003
Buku Teks
Tolstoy, Leo, graf, 1828-1910, author
Penguin Books, 2016
Buku Teks
Macchiavelli, author
Da Capo Press, 2001
Buku Teks
Hansen, Harry, author
A Mentor Book, 1961
Buku Teks