https://ancientimes.blogspot.com/2021/02/mythical-origins-of-game-of.html

https://www.researchgate.net/figure/Location-and-morphology-of-the-astragal_fig4_270960539

https://www.roger-pearse.com/weblog/tag/ancient-magic/

https://www.researchgate.net/publication/339281562_Scapulae_and_phalanges_as_grave_goods_a_mystery_from_the_Early_Bronze_Age

https://www.researchgate.net/publication/38413374_Divination_and_Power_A_Multiregional_View_of_the_Development_of_Oracle_Bone_Divination_in_Early_China_Jun_pg_422_2008