KHALAF, Mohammed Najem.
 Geographical distribution of gravel and sand quarries east of the Tigris River from the opening to the Tikrit Bridge.
<strong>Journal Of Al-Frahedis Arts</strong>, [S.l.], n. 29, p. 257-271, mar. 2019.
ISSN 2663-8118.
Available at: &lt;<a href="http://www.jaa.tu.edu.iq/index.php/art/article/view/257" target="_new">http://www.jaa.tu.edu.iq/index.php/art/article/view/257</a>&gt;. Date accessed: 29 nov. 2019.
doi: <a href="http://dx.doi.org/10.25130/art.v0i29.257">http://dx.doi.org/10.25130/art.v0i29.257</a>.