Sources: Albert Herrmann, Ph.D., "History and Commercial Atlas of China"(Havard University Press, 1935)周朝，西元前 11-19 世紀（ The Chou Dyansty, 11th-9th Centuries B.C. ）
Sources: Albert Herrmann, Ph.D., "History and Commercial Atlas of China"(Havard University Press, 1935)