João Silva (2016). "The Portuguese cançoneta and early phonography," in Pekka Gronow, Christiane Hofer, Frank Wonnenberg (eds.), Contributions to the History of the Record Industry, vol. 7 (Viena: Gesellschaft für Historische Tonträger)
João Silva (2016). "The Portuguese cançoneta and early phonography," in Pekka Gronow, Christiane Hofer, Frank Wonnenberg (eds.), Contributions to the History of the Record Industry, vol. 7 (Viena: Gesellschaft für Historische Tonträger)