Millard, Thomas F.
Our eastern question : American contact with the orient and the trend of relations with China and Japan
Century, 1916
 Buku Teks
Bell, Frederic Gladstone
Engineering treatment of soils / Frederic Gladstone Bell
E & FN Spon, 1993
 Buku Teks
Goody, Esther N
Question and politeness
Cambridge University Press, 1978
 Buku Teks
Foley, Gerald
The energy question
Penguin Books, 1976
 Buku Teks
Gladstone, Alan
Voluntary arbitration of the interest disputes a practical guide / by Alan Gladstone
International Labour Organization , 1984
 Buku Teks