1. Sound and symbol Zuckerkandl, Victor, Princeton, N.J. : Princeton University Press, [1956-1969] GRS103
2. Greek and Roman Art= Griechische und Römische kunst = Griekse en romeinse kunst = Arte griego y arte romano Sarti, Susanna, Florence (Italy) : SCALA, [2010] HIST472
3. The theory and analysis of drama Pfister, Manfred. Cambridge [Cambridgeshire] ; Cambridge University Press, 1988. ENG320
