Al-Farabi's Arabic-Latin writings on music in the Ihsa al-'ulum (Escorial Library, Madrid, No. 646), De scientiis (British Museum, Cott. M.S. Vesp. B.X., and Bibl. Nat., Paris, No. 9335), and De ortu scientiarum (Bibl. Nat., Paris, No. 6298, and Bodleian Library, Oxford, No. 3623), etc. - Farabi. (Collection of Oriental writers on music ;, 1960)