Eco, Umberto
Fontana, 1997
Buku Teks
Cambridge University Press, 2009
eBooks
Appel, René
Amsterdam Academic Archive, 2005
Buku Teks
edited by Ralph Ludwig, Peter Mühlhäusler and Steve Pagel
Cambridge University Press, 2019
Buku Teks
Raymond Hickey, editor
Wiley-Blackwell, 2010
Buku Teks