Bray, R.G.A. de
Guide to the Slavonic languages
J.M. Dent & Sons, 1951
Buku Teks
X/Open security guide : programming languages / X/Open Company, Ltd.
Prentice-Hall, 1989
Buku Teks
Walford's guide to reference material : fourth edition, volume 3, generalia, languages & literature, the arts / edited by A.J. Walford and L.J. Taylor
Library Association, 1987
Buku Referensi
Katzner, Kenneth
The languages of the world
Routledge, 1995
Buku Referensi
Languages & Literatures
Peter Lang International Academic Publishin Group, 2010
Majalah, Jurnal, Buletin