Usmanbaş, İlhan, 1921- (Personal Name)

İlyasoğlu, Evin. İlhan Usmanbaş, 2000: t.p. (İlhan Usmanbaş) p. 243, etc. (b. 1921 in Istanbul; Turkish music composer)

Grove music online, November 15, 2012 (Usmanbaş, İlhan; born September 28, 1921; studied at the Istanbul Municipal Conservatory and Ankara State Conservatory)

Wikipedia, November 15, 2012 (İlhan Usmanbaş; born September 28, 1921 (age 91); Turkish composer; professor of music at Istanbul Bilgi University)