Grabar, Oleg. "The Aesthetics of Islamic Art." In Islamic Art and Beyond, volume III, Constructing the Study of Islamic Art. Hampshire: Ashgate Publishing Limited, 2006. First published in Ahmet Ertug, ed., In Pursuit of Excellence (Istanbul, 1993), pp. xix-xxxvi.
Islamic Art and Beyond Part Three: General Islamic Art Chapter XXIII: The Aesthetics of Islamic Art