| Bibliography |  Suggestions |
| 1 | Kang, S.T., Sumerian Economic Texts from the Drehem Archive, Sumerian and Akkadian Cuneiform Texts in the Collection of the World Heritage Museum of the University of Illinois I, Urbana - Chicago - London 1972 |
| 2 | Powell, M.A., "Collations to Shin T. Kang, Sumerian Economic Texts from the Drehem Archive = SACT I (1972)", Oriens Antiquus 20 (1981) 125-138 |
| 3 | Maeda, T., "The Defense Zone During the Rule of the Ur III Dynasty", Acta Sumerologica 14 (1992) 135-172 |
| http://cdli.mpiwg-berlin.mpg.de/P128944 |
| http://oracc.museum.upenn.edu/epsd2/P128944 |