| Bibliography |  Suggestions |
| 1 | Langdon, S.H., Tablets from the Archives of Drehem, with a Complete Account of the Origin of the Sumerian Calendar, translation, commentary and 23 plates, Paris 1911 |
| 2 | Grégoire, J.-P., Contribution à l’Histoire Sociale, Économique, Politique et Culturelle du Proche-Orient Ancien. Archives Administratives et Inscriptions Cunéiformes de l’Ashmolean Museum et de la Bodleian Collection d’Oxford (AAICAB). III. Les Sources, Paris 2001 |
| http://cdli.ucla.edu/P131062 |
| http://oracc.museum.upenn.edu/epsd2/P131062 |