Gaya APA
Al-Hasan, A.
(2007).
The financial reforms of the Caliph Al-Mu`Tadid (279-89/892-901).
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Gaya MLA
Al-Hasan, Ahmad.
"The financial reforms of the Caliph Al-Mu`Tadid (279-89/892-901). ".
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2007.
Majalah.