Yoffee, 2015, p. 159. Yoffee, Norman (2015). «Deep Pasts Interconnections and Comparative History in the Ancient World». En Douglas Northrop, ed. A Companion to World History. John Wiley & Sons. ISBN978-1-118-30547-8.
Peasnall, 2002, p. 372. Peasnall, Brian (2002). «Ubaid». En Peter N. Peregrine; Melvin Ember, eds. Encyclopedia of Prehistory, Volume 8: South and Southwest Asia. Kluwer Academic/Plenum Publishers. ISBN978-0-306-46262-7.
Akkermans y Schwartz, 2003, p. 199. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Akkermans y Schwartz, 2003, p. 198. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Averbeck, 2003, p. 92. Averbeck, Richard E. (2003). «Sumer, the Bible, and Comparative Method: Historiography and Temple Building». En Mark W. Chavalas; K. Lawson Younger. Jr, eds. Mesopotamia and the Bible: Comparative Explorations. T&T Clark International. ISBN978-0-567-56900-4.
Algaze, 2013, p. 84. Algaze, Guillermo (2013). «The End of Prehistory and The Uruk Period». En Harriet Crawford, ed. The Sumerian World. Routledge. ISBN978-1-136-21912-2.
Aubet, 2013, p. 174. Aubet, Maria Eugenia (2013). Commerce and Colonization in the Ancient Near East. Cambridge University Press. ISBN978-0-521-51417-0.
Akkermans y Schwartz, 2003, p. 200. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Akkermans y Schwartz, 2003, p. 216. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Biga, 2014, p. 103. Biga, Maria Giovanna (2014). «Inherited Space – Third Millennium Political and Cultural Landscape». En Eva Cancik-Kirschbaum; Nicole Brisch; Jesper Eidem, eds. Constituent, Confederate, and Conquered Space: The Emergence of the Mittani State. Walter de Gruyter. ISBN978-3-11-026641-2.
Astour, 2002, p. 163. Astour, Michael C. (2002). «A Reconstruction of the History of Ebla (Part 2)». En Cyrus Herzl Gordon; Gary Rendsburg, eds. Eblaitica: Essays on the Ebla Archives and Eblaite Language4. Eisenbrauns. ISBN978-1-57506-060-6.
Astour, 2002, p. 162. Astour, Michael C. (2002). «A Reconstruction of the History of Ebla (Part 2)». En Cyrus Herzl Gordon; Gary Rendsburg, eds. Eblaitica: Essays on the Ebla Archives and Eblaite Language4. Eisenbrauns. ISBN978-1-57506-060-6.
van Soldt, 2010, p. 117. van Soldt, Wilfred H (2010). «The Adaptation of the Cuneiform Script to Foreign Languages». En Alexander J. de Voogt; Irving L. Finkel, eds. The Idea of Writing: Play and Complexity. Brill. ISBN978-90-04-17446-7.
Wossink, 2009, p. 30. Wossink, Arne (2009). Challenging Climate Change: Competition and Cooperation Among Pastoralists and Agriculturalists in Northern Mesopotamia (c. 3000–1600 BC). Sidestone Press. ISBN978-90-8890-031-0.
Akkermans y Schwartz, 2003, p. 279. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Wossink, 2009, p. 31. Wossink, Arne (2009). Challenging Climate Change: Competition and Cooperation Among Pastoralists and Agriculturalists in Northern Mesopotamia (c. 3000–1600 BC). Sidestone Press. ISBN978-90-8890-031-0.
Akkermans y Schwartz, 2003, p. 283. Akkermans, Peter M. M. G.; Schwartz, Glenn M. (2003). The Archaeology of Syria: From Complex Hunter-Gatherers to Early Urban Societies (c. 16,000-300 BC). Cambridge University Press. ISBN978-0-521-79666-8.
Biga, 2014, p. 100. Biga, Maria Giovanna (2014). «Inherited Space – Third Millennium Political and Cultural Landscape». En Eva Cancik-Kirschbaum; Nicole Brisch; Jesper Eidem, eds. Constituent, Confederate, and Conquered Space: The Emergence of the Mittani State. Walter de Gruyter. ISBN978-3-11-026641-2.
Astour, 2002, p. 86. Astour, Michael C. (2002). «A Reconstruction of the History of Ebla (Part 2)». En Cyrus Herzl Gordon; Gary Rendsburg, eds. Eblaitica: Essays on the Ebla Archives and Eblaite Language4. Eisenbrauns. ISBN978-1-57506-060-6.