The Uralic languages / edited by Daniel Abondolo
Routledge, 1998
 Buku Teks
Barratt, William B.
A level French course companion / William B. Barratt
Aldine House, 1994
 Buku Teks
Salomaa, Arto
Jewels of formal language theory / Arto Salomaa
Computer Science Press, 1981
 Buku Teks
Weisgerber, Leo
Die geschichtliche kraft der deutschen sprache von / Leo Weisgerber
Schwann, 1959
 Buku Teks
Koenen, Liesbeth
Vermogen te verlangen (9 (negen) letters)*
Nijgh & Van Ditmar, 1991
 Buku Teks