Institut ︠i︡azyka, literatury i istorii (Akademi︠i︡a nauk SSSR. Komi filial), & Berkhin, I. B. (1978). Istori︠i︡a Komi ASSR: S drevneĭshikh vremen do nashikh dneĭ. Komi knizhnoe izd-vo.
Lua i Stíl Chicago (17ú heag.)Institut ︠i︡azyka, literatury i istorii (Akademi︠i︡a nauk SSSR. Komi filial), agus Ilʹ︠i︡a Borisovich Berkhin. Istori︠i︡a Komi ASSR: S Drevneĭshikh Vremen Do Nashikh Dneĭ. Syktyvkar: Komi knizhnoe izd-vo, 1978.
Lua MLA (8ú heag.)Institut ︠i︡azyka, literatury i istorii (Akademi︠i︡a nauk SSSR. Komi filial), agus Ilʹ︠i︡a Borisovich Berkhin. Istori︠i︡a Komi ASSR: S Drevneĭshikh Vremen Do Nashikh Dneĭ. Komi knizhnoe izd-vo, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.