Chalmers, A.F., author
University of Green Sland Press, 1982
Buku Teks
Glock, Hans-Johann, 1960-, author
Cambridge University Press, 2012
eBooks
Norris, Christopher, author
Academy Editions, 1988
Buku Teks
Whatmore, Richard, author
Polity, 2016
Buku Teks
Synne L. Dyvik, Jan Selby and Rorden Wilkinson, editora
Routledge, Taylor & Francis Group, 2017
Buku Teks