JANHUNEN, Juha. Manchuria: An Ethnic History. [s.l.]: Finno-Ugrian Society 354 s. Dostupné online. ISBN9789519403847. (anglicky) Google-Books-ID: vfJiAAAAMAAJ.
WURM, Stephen A.; MÜHLHÄUSLER, Peter; TRYON, Darrell T. Atlas of Languages of Intercultural Communication in the Pacific, Asia, and the Americas: Vol I: Maps. Vol II: Texts. [s.l.]: Walter de Gruyter 1903 s. Dostupné online. ISBN9783110819724. (anglicky) Google-Books-ID: lFW1BwAAQBAJ.