Tài liệu tham khảo

WikiPedia: Tiếng_Chuvash http://www.uni-klu.ac.at/eeo/Tschuwaschisch.pdf http://www.britannica.com/eb/article-80003/Turkic-... http://www.ethnologue.com/show_language.asp?code=c... http://www.turkiclanguages.com/www/classification.... http://www3.germanistik.uni-halle.de/antos/dgfs98/... http://www.helsinki.fi/~tasalmin/europe_index.html http://www.mt-archive.info/LREC-2006-Zheltov.pdf http://en.chuvash.org http://en.chuvash.org/e/43687576617368206d616e7561... http://en.chuvash.org/e/436875766173682d456e676c69...