Obaid Issa, A., & 		Ali Saud Al-Jubouri, A.
(2019).
 Diwan Al-Kharaj and Al-Ataa Al-Nashra and Development until the end of the Umayyad era.
<em>Journal Of Tikrit University For Humanities - مجلة جامعة تكريت للعلوم الانسانية, 23</em>(4), 448-483.
doi:10.25130/hum.v23i4.390