Nissen, Hans J.. (2011). "5. The Period of the Rival City-States (ca. 2800-2350 B.C.)". The Early History of the Ancient Near East, 9000-2000 B.C.,. University of Chicago Press, Chicago. DOI:10.7208/9780226182698-008.
Beatrice, Teissier. (2020). "II. THE EARLY DYNASTIC PERIOD". Ancient Near Eastern Cylinder Seals from the Marcopoli Collection. University of California Press, Berkeley. DOI:10.1525/9780520348912-006.
Matthews, Roger and Matthews, Wendy. (2021). "A Palace for the King of Ereš? Evidence from the Early Dynastic City of Abu Salabikh, South Iraq". At the Dawn of History: Ancient Near Eastern Studies. Penn State University Press, University Park, USA. DOI:10.1515/9781575064741-027.
Martin, H. (1982). The Early Dynastic Cemetery at Al-‘Ubaid, a Re-Evaluation.. Iraq 44(2): 145-185. DOI:10.2307/4200161.
Zaina, F. (2015). A RADIOCARBON DATE FROM EARLY DYNASTIC KISH AND THE STRATIGRAPHY AND CHRONOLOGY OF THE YWN SOUNDING AT TELL INGHARRA.. Iraq 77: 225-234. DOI:10.1017/irq.2015.18.