Cohen, William A., 1937-
American Management Association, 2008
eBooks
Franklin, Benjamin
The Spencer Press, 1936
Buku Teks
Maugham, W. Somerset
Fawcett, 1956
Koleksi Publik
Blundell, Nigel
Octopus Books Limited, 1980
Buku Teks
Bienkowski, Andrew
Pocket Books, 2009
Buku Teks