Mathey-Engelbrecht, M. V. (1988). Comprehensive musicianship: 'n Amerikaanse benadering tot klasmusiek. University of the Witwatersrand.
Lua i Stíl Chicago (17ú heag.)Mathey-Engelbrecht, Maria Vourina. Comprehensive Musicianship: 'N Amerikaanse Benadering Tot Klasmusiek. Johannesburg: University of the Witwatersrand, 1988.
Lua MLA (8ú heag.)Mathey-Engelbrecht, Maria Vourina. Comprehensive Musicianship: 'N Amerikaanse Benadering Tot Klasmusiek. University of the Witwatersrand, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.