| Bibliography |  Suggestions |
| 1 | Sigrist, M., Texts from the Yale Babylonian Collections. I, Sumerian Archival Texts 2, Bethesda 2000 |
| 2 | Tsouparopoulou, C., The Ur III Seals Impressed on Documents from Puzriš-Dagān (Drehem), Heidelberger Studien zum Alten Orient 16, Heidelberg 2015 |
| http://collections.peabody.yale.edu/search/Record/YPM-BC-024793 |
| http://oracc.museum.upenn.edu/epsd2/P143352 |
| http://www.ebl.lmu.de/fragmentarium/YBC.10999 |
| http://cdli.ucla.edu/P143352 |