Karl, Raimund (2006). "Chariot and wagon". In Koch, John T (ed.). Celtic Culture: A Historical Encyclopedia. Vol. 2. Santa Barbara, California: ABC-CLIO. p. 401. ISBN1-85109-440-7. Retrieved 29 August 2014.
Shaughnessy, Edward L. (1988). "Historical Perspectives on The Introduction of The Chariot Into China". Harvard Journal of Asiatic Studies. 48 (1): 189–237. doi:10.2307/2719276. JSTOR2719276.
Shaughnessy, Edward L. (1988). "Historical Perspectives on The Introduction of The Chariot Into China". Harvard Journal of Asiatic Studies. 48 (1): 189–237. doi:10.2307/2719276. JSTOR2719276.