Özyetgin, A. Melek. “Eski Türk Resmî yazişma geleneğine Dair : Timürlü hükümdarı Ebü Sa’id Küregen’e Ait Uygur Harfli 1468 Tarihli Bir Bitik”. Turcology in Turkey: Selected Papers, edited by László Károly, vol. Vol. 47, SZTE BTK Institute of Hungarian Language and Literature University of Szeged, 2007, pp. 423–453, https://ebook.ek.szte.hu/index.php/btk-magyarnyelviirodalmi-intezet/catalog/book/223/chapter/436.