Scharlipp, Wolfgang-Ekkehard. Eski Türk run metinlerine giris : ders kitabi = Introduction to the Old Turkish runic inscriptions : a textbook in Turkish and English. Verlag Auf dem Ruffel, 2000. ISBN 3-933847-00-1. OCLC 47632193. (на английски)
Golden, Peter B., Hriban, Cătălin. Studies on the peoples and cultures of the Eurasian steppes. Editura Academiei Române, 2011. ISBN 978-973-27-2152-0. OCLC 806437412. (на английски)