Millard, Thomas F.
Our eastern question : American contact with the orient and the trend of relations with China and Japan
Century, 1916
 Buku Teks SO
Bell, Frederic Gladstone
Engineering treatment of soils / Frederic Gladstone Bell
E & FN Spon, 1993
 Buku Teks
Question and politeness
editor by Esther N. Goody
Cambridge University Press, 1978
 Buku Teks
Foley, Gerald
The energy question
Penguin Books, 1976
 Buku Teks SO
Maurois, A. (Andre)
La vie de Disraeli troiscent quatre-Vingt-neuvieme edition
[T.t.] Gallimard 1927
 Buku Teks