Mark Elliott:The Manchu Qay: The Eight Banners and Ethnic Identity in Late Imperial China, s. 242.Stanford University Press, 2001.ISBN9780804746847Teoksen verkkoversio.
Yingcong Dai:The Sichuan Frontier and Tibet: Imperial Strategy in the Early Qing, s. 17–18.University of Washington Press.ISBN978-0-295-98952-5Teoksen verkkoversio.