Cioffi-Revilla, Claudio; Lai, David (1995). "War and Politics in Ancient China, 2700 B.C.E. to 722 B.C.E.". The Journal of Conflict Resolution. 39 (3): 471–472. doi:10.1177/0022002795039003004.
google.hr
books.google.hr
Chinese archaeological abstracts:
prehistoric to Western Zhou by Albert E. Dien, Jeffrey K. Riegel, Nancy Thompson Price. Online version.