Literary History of the Arabs, London 1907.

O’Leary, de Lacy :

A short Hsitory of the Fatimid Khliphate.

Olmer, P. :

Filtres de gargoulettes, (Catalogue general du Musée Arab du Caire, 1932).

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Su, tre mihrab o nicchie da preghiera portatile del Museo Arabo di Cairo (Dedalo IV, 1923, 24).

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and Monmeret de villard: The Cruch of sitt barabra in old cairo florence 1922.

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