(in Russian) Beridze, Eter (2009), Языковая ситуация в Нигальском ущелье ("Linguistic situation in the Nigali valley"). Vlast' i Obshchestvo1: 71-82.
nplg.gov.ge
(in Georgian) Beridze, Eter (2009), ნიგალი ("Nigali", with En., Rus., Turk. summaries), pp. 8-10. Shota Rustaveli State University, ISBN978-9941-409-02-8.