Umarah ibn Ali, al-Hakami,  1120 or 21-1174. <br/><br/>
Yaman :  its early mediaeval history / 
by Najm ad-Din Omarah al-Hakami ; also the abridged history of its dynasties by Ibn Khaldun. And an account of the Karmathians of Yaman by Abu Abd Allah Baha ad-Din al-Janadi ; the original texts, with translation and notes, by Henry Cassels Kay. London, Arnold, 1892 
 - Farnborough, Hants :  Gregg International,  1968 
 - xxv, 358, 152 p. :  geneal. table, fold. map. ;  23 cm. 
<br/><br/> Translation of Tarikh al-Yaman. 
<br/><br/><br/>engara 
<br/><br/><label>ISBN: </label>0576035726 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Karmathians
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Yemen--History