Tham khảo Khả_đôn

  1. ↑ 罗新，柔然官制续考，中华文史论丛，2007年1期。
  2. ↑ Peter Benjamin Golden (1998), "Turks and Iranians: An historical sketch" in Johanson, Lars; Csató, Éva Ágnes (2015). The Turkic Languages. Taylor & Francis. ISBN 978-1-136-82534-7.Quản lý CS1: ref=harv (liên kết), page 5