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Lloyd Clifton Miller. 1995. Persian Music: A Study of Form and Content of Persian Avaz, Dastgah & Radif Dissertation. University of Utah.
Bruno Nettl, The Radif od Persian Music: Studies of Structure and Cultural Context (Elephant & Cat, Champaign, 1987)
Ella Zonis, Contemporary Art Music in Persia, The Musical Quarterly, Vol. 51, No. 4, pp. 636–648 (1965). JSTOR