USER22, user2; 						OBAID, shfaa.
 The origins of the fixed professions and their differentiation.
<strong>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</strong>, [S.l.], v. 24, n. 1, p. 96-108, mar. 2019.
ISSN 1817-6798. Available at: &lt;<a href="https://jtuh.tu.edu.iq/index.php/hum/article/view/192" target="_new">https://jtuh.tu.edu.iq/index.php/hum/article/view/192</a>&gt;. Date accessed: 22 july 2024.
doi: <a href="http://dx.doi.org/10.25130/hum.v24i1.192">http://dx.doi.org/10.25130/hum.v24i1.192</a>.