Wikimedia Commons có thêm hình ảnh và phương tiện truyền tải về Già Da.
↑ (2001). Kaya. In The Penguin Archaeological Guide, edited by Paul Bahn, pp. 228–229. Penguin, London.
↑ Barnes, Gina L. (2001). Introducing Kaya History and Archaeology. In State Formation in Korea: Historical and Archaeological Perspectives, pp. 179–200. Curzon, London.
↑ Christopher I. Beckwith, Empires of the Silk Road: A History of Central Eurasia from the Bronze Age to the Present (Princeton University Press, 2009: ISBN 978-0-691-13589-2), p. 105.
