Differences between the Uyghur doppas and Uzbek doppis can be observed from their shape, method of making, and colour. Uyghur doppas are round, whereas Uzbek doppis are square with pointy edges. Uyghur doppas are relatively softer, while Uzbek doppis are slightly harder and set into shape with mold.
^Nabidjanova, Nargiza (March 2022). "Men's" Ilma" Chust Doppi Production Study" (PDF). Academicia Globe: Inderscience Research. 3: 3. ISSN 2776-1010. Retrieved 26 November 2023.
^Khan, Aina J. (2021-11-17). "An Australian's Search for Belonging Led to the Silk Road and a Famed Hat". The New York Times. ISSN 0362-4331. Retrieved 2023-09-07.
Sources
Aina J. Khan (2021): The New York Times "An Australian’s Search for Belonging Led to the Silk Road and a Famed Hat"