Chinese grammar of the Manchu Tartar language (by Woo Kĭh Show-ping, revised and ed. by Ching Ming-yuen Pei-ho) with intr. notes on Manchu literature. 1855
California Press, 1988. ——; Crossley, Pamela Kyle. A Profile of the ManchuLanguage in Ch'ing History. Harvard Journal of Asiatic Studies. 1993, 53 (1):
Wadley, Stephen A. (1996), "Altaic Influences on Beijing Dialect: The Manchu Case", Journal of the American Oriental Society 116.1: 99-104. Wang, William
Kent: Global Oriental. 2005. ISBN 1-901903-14-1. Vovin, Alexander. The Manchu-Tungusic Languages. Richmond: RoutledgeCurzon. 2006. ISBN 978-0-7007-1284-7