Hilprecht, H. V., and A. T. Clay. <a href="/sites/default/files/coretexts/20249.pdf">Business documents of Murashû sons of Nippur dated in the reign of Artaxerxes I. (464-424 BC)</a>. <em>ETANA</em>. Philadelphia Published by the Department of archæology and palæontology of the University of Pennsylvania 1898. (Book)