See:
- https://www.hittitemonuments.com/sirzi/index.htm
- J. D. Hawkins, orpus of Hieroglyphic Luwian Inscriptions, Vol 1, Berlin: Walter de Gruyter, 2000, pp. 322-24 and plts. 157-59.
- Trevor Bryce, The World of The Neo-Hittite Kingdoms: A Political and Military History, OUP Oxford 2012, pp. 107-108