See:
- http://www.eskisehirkulturturizm.gov.tr/TR,157706/hamamkaya-frig-kaya-mezari.html
- https://arachne.uni-koeln.de/arachne/index.php?view[layout]=bauwerk_item&search[constraints][bauwerk][searchSeriennummer]=2106378
See:
Hellenistic Rock Tomb 2nd century BC. Gerdek Kaya. SW of Cukurca village.
Phrygian fortress.
Phrygian fortress - Doğanlı- Deveboynu.