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| 1 | Legrain, L., Business Documents of the Third Dynasty of Ur, Ur Excavations Texts 3, London 1937 |
| 2 | Dong, X., "The King’s Spear: A Note on Bronze Weapons and Weapons Manufacturing in the Ur III Period", M. Widell - P. Daneshmand (eds.), Discussions in Assyriology, The Digital Archive of Brief Notes & Iran Review 9, Irvine 2022, pp. 95-103 |
| http://cdli.earth/P136772 |
| http://www.ur-online.org/subject/3397/ |
| http://www.britishmuseum.org/collection/search?museum_number=130209 |
| http://oracc.museum.upenn.edu/epsd2/P136772 |
| http://www.ebl.lmu.de/library/BM.130209 |