Tham khảo Chữ_Duy_Ngô_Nhĩ_cổ

  1. ↑ Sinor, D. (1998), “Chapter 13 - Language situation and scripts”, trong Asimov, M.S.; Bosworth, C.E. (biên tập), History of Civilisations of Central Asia, 4 part II, UNESCO Publishing, tr. 333, ISBN 81-208-1596-3
  2. ↑ Pandey, Anshuman. (2019). Revised proposal to encode Old Uyghur in Unicode.
  3. ↑ Clauson, Gerard. 2002. Studies in Turkic and Mongolic linguistics. P.110-111.
  4. ↑ Houston, Stephen D. 2004. The first writing: script invention as history and process (p.59).