| Bibliography |  Suggestions |
| 1 | Hallo, W.W., Sumerian Archival Texts, Tabulae Cuneiformes a F.M.Th. de Liagre Böhl Collectae, Leidae Conservatae 3, Leiden 1963 |
| 2 | Tsouparopoulou, C., The Ur III Seals Impressed on Documents from Puzriš-Dagān (Drehem), Heidelberger Studien zum Alten Orient 16, Heidelberg 2015 |
| http://oracc.museum.upenn.edu/epsd2/P134171 |
| http://cdli.mpiwg-berlin.mpg.de/P134171 |