| Bibliography |  Suggestions |
| 1 | Nikol'skij, M., Документы хозяйственной отчетности древней Халдеи из собрания Н.П. Лихачева / Ч.II, Эпоха династии Агаде и эпоха династии Ура [Documents of Economic Accounting from Ancient Chaldea in the Collection of N.P. Likhachev. Vol. II. The Age of the Agade Dynasty and the Age of the Ur Dynasty], Drevnosti Vostocnya 5, Moscow 1915 |
| 2 | Steinkeller, P., "The Foresters of Umma: Toward a Definition of Ur III Labor", M. Powell (ed.), Labor in the Ancient Near East, American Oriental Series 68, New Haven 1987, pp. 73-115 |
| http://oracc.museum.upenn.edu/epsd2/P121886 |
| http://cdli.mpiwg-berlin.mpg.de/P121886 |