| Bibliography |  Suggestions |
| 1 | Yıldız, F. - Ozaki, T., Die Umma-Texte aus den Archäologischen Museen zu Istanbul. Band VI (Nr. 3501-3834), Bethesda 2001 |
| 2 | Steinkeller, P., "The Umma Field Ušgida and the Question of GARšana's Location", B.J. Collins - P. Michalowski (eds.), Beyond Hatti. A Tribute to Gary Beckman, Atlanta 2013, pp. 295-308 |
| 3 | Blaschke, T., Euphrat und Tigris im Alten Orient, Leipziger Altorientalistische Studien 6, Wiesbaden 2018 |
| http://oracc.museum.upenn.edu/epsd2/P141704 |
| http://cdli.earth/P141704 |