Markesinis, B.S., author
Clarendon Press, 1990
Buku Teks
Freund, Paul A., author
Harvard University Press, 1974
Buku Teks
Hart, H.L.A., author
Clarendon Press, 1979
Buku Teks
Hart, H.L.A., author
United Kingdom Oxford University Press, 2012
Buku Teks
Ross, Alf, author
University of California Press, 1959
Buku Teks