Brian D. Joseph (2003). W. Frawley (ed.). "THE BALKAN LANGUAGES"(PDF). Oxford International Encyclopedia of Linguistics. 1. The Ohio State University: Oxford University Press: 153–155.
Gardani, Francesco; Arkadiev, Peter; Amiridze, Nino (11 December 2014). Borrowed Morphology. Walter de Gruyter GmbH & Co KG. ISBN9781614513209. Retrieved 15 December 2017 – via Google Books.