[1]
Ramadan Hassan, S. 2000. The Scimtific and administriue Effeneiency of the ministey Awn-el-Din Bin-Hubara (499-560 A.H.). Adab Al-Rafidayn. 42, 61 (Jan. 2000), 157–184. DOI:https://doi.org/10.33899/radab.2012.69362.