Sydenham, Angela, author
Sweet & Maxwell, 2000
Buku Teks
Haley, Michael, author
Sweet and Maxwell, 2007
Buku Teks
Mennell, Robert L., author
West Publishing, 1994
Buku Teks
Stockwell, Nigel, author
Pitman, 1992
Buku Teks
Penner, J. E. (James E.), author
Oxford University Press, 2016
Buku Teks