Urquhart, Leonard Church, editor
McGraw-Hill , 1950
Buku Teks
edited by Michel Fremond and Franco Maceri
Springer, 2012
eBooks
by Michel Pero, Gordon Shenton, Alain Duwal
Dictionnaires Le Robert, [date of publication not identified]
Buku Referensi
W.F. Chen, editor-in-chief
CRC Press, 2000
Buku Referensi
Fenves, Steven J., author
Prentice-Hall, 1969
Buku Teks