| Bibliography |  Suggestions |
| 1 | Sigrist, M. - Owen, D.I. - Young, G.D., The John Frederick Lewis Collection - Part II, Materiali per il Vocabolario Neosumerico 13, Rome 1984 |
| 2 | Steinkeller, P., "New Light on the Hydrology and Topography of Southern Babylonia in the Third Millennium", Zeitschrift für Assyriologie 91 (2001) 22-84 |
| 3 | Rost, S., Watercourse Management and Political Centralization in Third-Millennium B.C. Southern Mesopotamia: A Case Study of the Umma Province of the Ur III Period (2112–2004 B.C.), Ph.D. Diss., Stony Brook University 2015 |
| http://cdli.earth/P117054 |
| http://oracc.museum.upenn.edu/epsd2/P117054 |