Yaman : its early mediæval history / Najm ad-Din 'Omārah al-Ḥakami; also the abridged history of its dynasties by Ibn Khaldūn, 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.
Yaman :
