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| 1 | Hallo, W.W., Sumerian Archival Texts, Tabulæ Cuneiformæ, a F.M.Th. de Liagre Böhl collectæ, Leidæ conservatæ 3, Leiden 1963 |
| 2 | Nelson, R.C., Pisan-dub-ba Texts from the Sumerian Ur III Dynasty, Ph.D. Diss. University of Minnesota 1976 |
| http://cdli.earth/P134145 |
| http://oracc.museum.upenn.edu/epsd2/P134145 |