| Bibliography |  Suggestions |
| 1 | Al-Rawi, F. - Verderame, L., Documenti amministrativi neo-sumerici da Umma conservati al British Museum (NATU II), Nisaba. Studi Assiriologici Messinesi 11, Messina 2006 |
| 2 | Focke, K., Der Garten in neusumerischer Zeit, Alter Orient und Altes Testament 53, Münster 2015 |
| 3 | Pottorf, A.R., Social Stratification in Southern Mesopotamia during the Third Dynasty of Ur (ca. 2100–2000 BCE), Ph.D. Diss., Harvard University 2022 |
| http://www.britishmuseum.org/collection/search?museum_number=104761 |
| http://oracc.museum.upenn.edu/epsd2/P201731 |
| http://www.ebl.lmu.de/library/BM.104761 |
| http://cdli.earth/P201731 |