1. Altman, Rick (2004), Silent Film Sound, New York: Columbia University Press.
2. Chion, Michel (1994), Audio-Vision (trans. C. Gorbman), New York: Columbia University Press.
3. Gorbman, C. (1987), Unheard Melodies: Narrative Film Music, Bloomington: Indiana University Press.
4. Mithen, Steven (2005), The Singing Neanderthals, London: Weidenfeld & Nicholson.
5. Nietzsche, Friedrich (1997), Thus Spake Zarathustra, London: Wordsworth.