1993
Buku Teks
Byron
The Nonesuch Press, 1949
Buku Teks
Uldrich, Jack
[American Management Association, ], 2005
eBooks
Clapham, John, Sir
The Cambridge University Press, 1949
Buku Teks
stanley Kauffmann, Bruce Henstell, edited
Liveright, 1972
Buku Teks