See:
- Young, Rodney S. “Gordion: Preliminary Report, 1953.” American Journal of Archaeology, vol. 59, no. 1, Archaeological Institute of America, 1955, p. 16, https://doi.org/10.2307/500929.
- http://www.resmigazete.gov.tr/ilanlar/eskiilanlar/2015/07/20150715-4-1.pdf
- Gabriel Pizzorno, Gareth Darbyshire: Mapping Gordion in: C. Brian Rose eds, The Archaeology of Phrygian Gordion, Royal City of Midas: Gordion Special Studies 7 (2013). pp. 23-38
- http://www.tayproject.org/TAYages.fm$Retrieve?CagNo=9495&html=ages_detail_e.html&layout=web
- Richard Liebhart, Gareth Darbyshire, Evin Erder, Ben Marsh, A Fresh Look at the Tumuli of Gordio, in: Tumulus as Sema. Vol XXVII, 2016
- https://kulturenvanteri.com/en/yer/gordion-tumulus-t3-tumulus-w/