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