Eman Talaat Abdulrazaq Aldabbagh 2019. EVENT DIRHAMS OF THE ABBASID CALIPH AL-MU’TAZID BILLAH (279-289 H) - (892-902 AD) An analytical study. QALAAI ZANIST JOURNAL. 4, 4 (Dec. 2019), 890–921. DOI:https://doi.org/10.25212/lfu.qzj.4.4.26.