SALEH, Omar.
 Seals of the Rightly-Guided Caliphs and Their Signs.
<strong>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</strong>, [S.l.], v. 27, n. 2, p. 330-300, apr. 2020.
ISSN 1817-6798. Available at: &lt;<a href="https://jtuh.tu.edu.iq/index.php/hum/article/view/958" target="_new">https://jtuh.tu.edu.iq/index.php/hum/article/view/958</a>&gt;. Date accessed: 15 may 2024.
doi: <a href="http://dx.doi.org/10.25130/hum.v27i2.958">http://dx.doi.org/10.25130/hum.v27i2.958</a>.