[1] Hosseini, Sara, et al., "Structural analysis of earth construction's vaults: Case of underground tombs of Chogha Zanbil", Revista de la construcción 19.3, pp. 366-380, 2020
ucla.edu
cdli.ucla.edu
RIMI nn artifact entry (No. P388073). (2008, November 20). Cuneiform Digital Library Initiative (CDLI). https://cdli.ucla.edu/P388073
unesco.org
whc.unesco.org
"Tchogha Zanbil". UNESCO World Heritage Centre. Retrieved July 15, 2017. It is the largest ziggurat outside of Mesopotamia and the best preserved of this type of stepped pyramidal monument.