Aitchison J. Language Change: Progress or Decay? — Cambridge: Cambridge University Press. 2012. — 209 p.

Aksan D. Her Yönüyle Dil-Ana Çizgileriyle Dilbilim — Ankara: Türk Dil Kurumu. 2009. — 80 p.

Appel R. and Muysken P. Language Contact and Bilingualism — London: Edward Arnold Press. 1989. — 228 p. — URL: https://archive.org/details/languagecontactb0000appe

Crystal D. The Camrbidge Encyclopedia of Language — Cambridge: Published by Cambridge University Press. 1987. — 484 p. — URL: https://archive.org/details/cambridgeencycl000crys

Crystal D. Dillerin Katili. (Çev. Gökhan Cansız) — İstanbul: Profil Yayınları. 2015. — 92 p.

Garzon S. “The Process of Language Death in a Mayan Community in Southern Mexico”. Allan Taylor and Joshua Fishman, Mouten de Gruyter (eds.). // International Journal of Sociology of Language. — New York. 1992. — URL: https://www.semanticscholar.org/author/S.- Garzon/116074625

Grinevald C. “Language Endangerment in South America: a programmatic approach”, in Lenore Grenoble and Lindsay Whaley (eds.), Endangerment Languages — Cambridge: Cambridge University Press. 1998. 137 p.

Ğubar G. M. Afganistan der Mesir-i Tarih — Kabil: Kabil Matbaası. 1967. — 67 p.

Hale Ken “On Endangered Languages and the Safeguard of Diversity”, in Endangered Languages, (ed) Ken Hale, MIT Press — Cambridge. 1994. — 21 p.

İbrahim M. İ. Trajik Afganistan — İstanbul: Tarih Düşünce Kitapları Yayını 2. Cilt. 2003. — 190 s.

Karabulut F. Dil Ölümü Süreceinde Kazak Türkçesinin Durumu — Manisa: Celal Bayar Üniversitesi Sosyal Bilimler Dergisi. 2004. — S. 1–7.

Saray M. Afganistan ve Türkler — İsta nbul: Kitapevi Yayınları, I. Cilt. 1997. — 186 s. — URL: https://openlibrary.org/works/OL1020325W/Afganistan_ve_T%C3%B Crkler

Saray M. Afganistan ve Türkler — İsta nbul: Kitapevi Yayınları, 2. Cilt. 1997. — 298 s.

Trask R. L. Historical Linguistics — London: Arnold Press. 1996. — 324 p.

Wurm S. Language Death and Disappearance: Causes and Circumstances in Robert Robins and Eugenius Uhlenbeck (eds.), Endangered Languages — New York: Berg Press. 1991. — URL: https://philpapers.org/rec/SAWLDA