Bgazhba, Khukhut Solomonovich (1967). Из истории письменности в Абхазии [From the History of Writing in Abkhazia] (PDF) (in Russian). Tbilisi: Мецниереба. p. 43. Archived from the original(PDF) on 15 June 2019. Retrieved 4 June 2020.
web.archive.org
Bgazhba, Khukhut Solomonovich (1967). Из истории письменности в Абхазии [From the History of Writing in Abkhazia] (PDF) (in Russian). Tbilisi: Мецниереба. p. 43. Archived from the original(PDF) on 15 June 2019. Retrieved 4 June 2020.
